SoftPlus Water Softeners Iron Rival Iron Reduction Systems ecoTAC Hard Water Conditioning Systems

Iron Rival Filters with Filox Media
and Air Injection Oxidizer Technology

extremely powerful chemical-free whole house solution for the removal of high levels of iron, manganese, and hydrogen sulfide (rotten egg odor)

HomePlus Iron Rival Whole House Filters
with Filox Media

MSRP: US$1,414.00
Starting at: US$1,081.00

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HomePlus Iron Rival Whole House Filters <br>with Filox Media

Good Better Best
See "Compare Models"
for more details.
Iron Rival
w/ Birm®
Iron Rival
w/ Katalox Light®
Iron Rival
w/ Filox
Recommended for: whole house treatment of iron up to 3 ppm (mg/l) when manganese and hydrogen sulfide reduction is not required, and pH > 6.8 whole house treatment of iron up to 7 ppm (mg/l) and low levels of hydrogen sulfide, particularly for low yield wells whole house treatment of iron up to 15 ppm (mg/l) as well as manganese and hydrogen sulfide where backwash flow requirements can be met
Air Injection Oxidizer Technology?: Has Feature Has Feature Has Feature
Iron Removal?: Has Feature
up to 3 ppm (mg/l)
Has Feature
up to 7 ppm (mg/l)
Has Feature
up to 15 ppm (mg/l)
Manganese Removal?: Not Recommended
not recommended**
Okay Yellow
up to 1 ppm (mg/l) but Filox recommended**
Has Feature
up to 3 ppm (mg/l)
Hydrogen Sulfide (H2S) Removal?: Not Recommended
Do not use if H2S is present
Has Feature
up to 2 ppm (mg/l)
Has Feature
up to 7 ppm (mg/l)
Media Life: 3-7 Years 5-10 Years 10+ Years
pH Range: 6.8 to 9.0 6.0* to 9.0 5.0* to 9.0
Backwash Requirements: Moderate Moderate High
Price Range: US$987.00 to US$1720.00 US$1095.00 to US$2190.00 US$1081.00 to US$2269.00

* If your pH is less than 6.5, we recommend pH correction to prevent corrosion and to boost performance of your iron filter

**Satisfactory removal or low levels of manganese (under 1 ppm) with Birm® and Katalox Light® can generally be achieved where the pH is between 8.0 and 9.0, and where the iron to manganese ratio is 10:1 or higher. In most cases, we recommend the use of Filox media for manganese reduction due to its more powerful catalytic properties.

  • Description & Benefits
  • How It Works
  • Compare Models
  • Specifications
  • Install / Manuals
  • Validations
  • Warranty

Description & Benefits

Iron Rival Series whole house filters are offered with 3 media options: Birm® (Good), Katalox Light® (Better), and Filox (Best). See our Compare Models tab to determine the best choice for your application.

Filox is both our most popular and our most powerful media option. It is capable of removing high levels of iron, manganese, and hydrogen sulfide (rotten egg odor). It is extremely long-lasting since it is a solid media (not coated). It can last almost indefinitely if backwashed properly. Since it is such a powerful catalyst, smaller systems can generally be used to achieve the same treatment goals, and it performs better than other media in the removal of stubborn manganese.

Filox is a relatively heavy media so it is important to ensure that your well and pressure system can support the backwash needs of your selected model. If in doubt, please contact one of our Certified Water Technicians toll free at 1-866-376-2690 for assistance.

Iron and manganese cause unsightly staining of your plumbing fixtures, appliances, and laundry and can impart unpleasant metallic tastes to your drinking water. Iron Rival Series iron filters combine Air Injection Oxidizer technology and catalyst media to remove these common water contaminants without the use of chemicals.

Iron Rival w/ Filox Media Benefits:

  • the most powerful chemical-free media option on the market today
  • removes dissolved and precipitated iron up to 15 ppm (mg/l), 3 ppm (mg/l) manganese, and up to 7 ppm (mg/l) of hydrogen sulfide*
  • chemical free!
  • dramatically enhanced oxidation as compared to standard Birm® iron filters
  • able to treat higher flow rates with less pressure loss than most competitive systems
  • single tank system requires smaller physical footprint - saves space!
  • pre-programmed digital control valve with fully-automated backwash - made in the USA!
  • limited maintenance required - no filters to replace
  • non-metallic treatment tank will never rust or corrode - tank comes with a 10-year warranty!
  • does not require an air injector, venturi or micronizer that can plug with iron and hard water deposits
  • no expensive air pumps to replace or repair
  • effective over extremely wide pH range

* if your contaminant levels are higher than these guidelines, please contact one of our Certified Water Technicians toll free at 1-866-376-2690 for assistance. We would be pleased to customize a solution for your specific situation.

Ideal for the treatment of well water and surface water (lakes, streams, springs, and rivers).

Clean & Clear Water
No more dirty water!

  • removes dissolved iron up to 15 ppm!
  • removes up to 3 ppm manganese, and rotten egg odor
  • improves clarity and prevents staining
Low Maintenance
Economical and low maintenance...

  • no filter cartridges to replace
  • long-life media
  • fully automated periodic backwash
Filtration you can Trust
Protection you can rely on...

  • prevent stains from damaging your plumbing fixtures, water heater, and appliances
  • no more discolored laundry

No more chemicals!...

All Iron Rival systems are designed to backwash periodically to eject trapped sediment and particulates. Accordingly, the control valve is connected to a drain and the backwash water together with the rejected contaminants are simply discharged to the drain during the backwash process. The backwash is controlled by the robust and time-proven Fleck 2510AIO SXT digital control valve, and is generally programmed to occur in the middle of the night (fully adjustable) when you are not likely to be using any water. In a typical residential application, the Filox media will be backwashed daily. In most applications, Filox will last indefintiely if properly backwashed.

How Iron Rival™ Whole House Filters Work - Chemical Free Iron Treatment

How Iron Rival Works

Oxidation followed by filtration is the most effective means of iron treatment - the method has been around for decades in one form or another. The oxidation of iron can be done in many ways; however, it is most frequently initiated by a chemical oxidant such as chlorine, hydrogen peroxide, or permanganate, or through an air injection pump or venturi. Chemical oxidants are a nuisance to set-up, monitor, and maintain, and often require additional equipment to treat new problems posed by the introduction of the chemicals to the water. The use of air injection pumps or a venturi requires additional costly equipment, require longer contact times (bulkier equipment), and have proven ineffective at the lower flow rates typically found in most residential settings.

Iron Rival Series Filters use a unique air injection oxidizer technology that overcomes all of these shortcomings. The result is the industry's most effective chemical-free treatment system for iron. And, not only is it highly effective, it is affordable, easy to install and operate, and requires very little maintenance!

Water first enters the system where it is distributed into the top of the treatment tank by a unique diffuser. The top of the tank contains a pressurized head of air sometimes referred to as a "captive air charge" which immediately begins to oxidize dissolved iron, manganese, and hydrogen sulfide. The captive air charge also dramatically increases the dissolved oxygen content of the water to prepare for the next stage of treatment.

The water then reaches the treatment tank's bed of Filox catalyst media. Filox rapidly accelerates the combination of the dissolved contaminants and the oxygen, resulting in the formation of oxidized particles (primarily iron hydroxide, insoluble forms of manganese, and sulfur precipitates). These particles quickly grow in size and become trapped within the media bed. By the time the water reaches the bottom of the treatment tank, it is virtually free of any iron, manganese, and hydrogen sulfide. A support bed of gravel ensures even water flow through the media bed.

Periodically, the digital control valve will automatically backwash and regenerate the system without any intervention required. This process is pre-programmed at our factory to occur at specific intervals based on your water conditions and media selected - it is normally set to occur daily for Filox media. The regeneration is typically scheduled to occur at night when water is unlikely to be in use for maximum convenience. No chemicals or salt are required. During regeneration, the remaining captive air charge is purged, the catalyst media is backwashed to send the oxidized particles down the drain, and the chamber of air is replenished.

Since the media within the filter acts only as a catalyst, it is not used up in the treatment process. Accordingly, there are no filters to replace, no chemicals to add, no venturi systems or pumps to maintain, etc.!

The Filox media has a long service life. If backwashed properly, it can last indefinitely. However, if it ever needs to be replaced, it can be done in about half an hour without any plumbing knowledge or special experience - anyone can do it. There is no need to replace filter cartridges every few months, saving you time and money.

The result is clean, clear water at every faucet - no more unsightly iron stains!

More about Filox

Watts' Alamo brand Filox is an extremely powerful iron removal media. It is an excellent choice for where very high levels of contaminants are present.

Like most iron removal medias, Filox acts as an insoluble catalyst to enhance the reaction between dissolved oxygen and the iron compounds to form ferric hydroxide which is then removed through mechanical filtration in the media bed. As a catalyst, Filox is not consumed in the iron removal process and it does not need to be regenerated. Also like most other iron removal media, the active ingredient in Filox is manganese dioxide.

Filox is a natural ore that is composed of 75 to 85% manganese dioxide, giving it dramatically more active ingredient that almost all other iron removal media. As a solid media, as opposed to a coated media, it is not subject to performance loss due to mechanical wear on the outer layers of the granules caused by the backwash process. Accordingly, Filox has a near indefinite life in all but the most severe treatment conditions. Treatment of up to 15 ppm (mg/l) iron, 7 ppm (mg/l) hydrogen sulfide, and 3 ppm (mg/l) manganese is possible in a well designed system (even higher levels can be treated with pre-oxidation with air, chlorine, hydrogen peroxide or other oxidant).

As a solid media, Filox is significantly heavier than other iron removal media (about 114 lbs per cubic foot). Accordingly, it requires a more frequent backwash (daily recommended) and higher backwash flow rates. Consideration should be given to the well's water yield to ensure that sufficient water is available for backwash. Some water treatment dealers dismiss Filox due to its weight but ignore the fact that due to its potency, higher service flow rates can be achived with smaller treatment tanks and less media volume. This helps counteract the backwash flow rate requirements as the backwash rate is directly related to tank diameter. In our experience, an 8" diameter tank with 0.5 cubic feet of Filox will perform as well or better than a 10" tank with twice as much Birm® for instance, and will have similar backwash flow rate.

Arsenic Removal with Filox

Iron Rival systems with Filox media may be used to remove, or assist in the removal, of arsenic.

Since most arsenic removal medias are negatively impacted by iron and manganese, the choice of a good iron pre-filter is critical to the performance of your arsenic treatment. Filox has several advantages over other media options as a pre-treatment for arsenic. Firstly, Filox will convert trivalent arsenic to pentavalent arsenic to enhance removal at subsequent treatment steps. Secondly, indirect removal of arsenic will occur through a process called co-precipitation where arsenic is adsorbed to the ferric hydroxide particles created during iron removal. In many cases, near complete arsenic removal is possible where the raw water iron level is at least 20 times higher than the arsenic level. In cases where this ratio of iron to arsenic does not exist, the reduction in arsenic through co-precipitation enhances the life of the arsenic treatment media. Direct adsorption of arsenic to the Filox media also occurs for the first few months of operation, thereby further enhancing arsenic removal performance.

As in all cases of arsenic treatment, follow-up testing should be done to confirm satisfactory arsenic reduction.

Compare Available Models (Media Options)

Iron Rival Series filters are offered with 3 media options: Birm® (Good), Katalox Light® (Better), and Filox (Best).


Our Birm® media option is highly cost-effective, and requires less backwash flow rate, volume, and frequency as compared to the other options. It is recommended for iron removal applications up to 3 ppm (mg/l), particularly when manganese and hydrogen sulfide are not present. A pH range of 6.8 to 9.0 is required.

Katalox Light®

Katalox Light® is a more powerful catalyst than Birm® and it is a higher tollerence of other oxidizers such as chlorine. It has a much higher percentage of active ingredient so it works faster, can treat more severe iron problems, and lasts longer. Similar to Birm®, we find that Katalox Light® performs best for manganese reduction when the pH is higher than 8.0. It is generally very effective at eliminating low to moderate levels of hydrogen sulfide (rotten egg odor). That said, given the similar cost, we generally recommend the Filox option for applications involving the removal of manganese and hydrogen sulfide. It's relatively light weight and potency make it a good choice for low yield wells that might not be able to meet the backwash flow rate requirements of a Filox filter.

Filox     Most Popular Choice

Filox is the most potent media option and is our recommended solution for most iron, manganese, and hydrogen sulfide treatment applications. Unlike Birm® and Katalox Light®, Filox is not a coated media. It is a solid media composed primarily of the active ingredient. This makes it very resistent to other oxidizers like chlorine and peroxide, and gives it an almost indefinite life when backwashed properly. It has the broadest effective pH range, can treat the highest levels of iron, and easily handles relatively high levels of manganese and hydrogen sulfide without harm to the media. The biggest drawbacks of Filox are that it is a little bit more expensive per cubic foot (this is countered by its potency which generally permits the use of less media to do the same job), and the fact that it is relatively heavy. As a result of its weight, it requires a higher backwash flow rate and should also be backwashed more frequently.

Good Better Best
See "Compare Models"
for more details.
Iron Rival
w/ Birm®
Iron Rival
w/ Katalox Light®
Iron Rival
w/ Filox
Catalyst Media: Birm® Katalox Light® Filox
Recommended for: treatment of iron up to 3 ppm (mg/l) when manganese and hydrogen sulfide reduction is not required, and pH > 6.8 treatment of iron up to 7 ppm (mg/l) and low levels of hydrogen sulfide, particularly for low yield wells treatment of iron up to 15 ppm (mg/l) as well as manganese and hydrogen sulfide where backwash flow requirements can be met
Air Injection Oxidizer Technology?: Has Feature Has Feature Has Feature
Iron Removal?: Has Feature
up to 3 ppm (mg/l)
Has Feature
up to 7 ppm (mg/l)
Has Feature
up to 15 ppm (mg/l)
Manganese Removal?: not recommended** yes, up to 1 ppm (mg/l)
but Filox generally recommended**
Has Feature
up to 3 ppm (mg/l)
Hydrogen Sulfide (H2S) Removal?: No,
do not use if H2S is present
Has Feature
up to 2 ppm (mg/l)
Has Feature
up to 7 ppm (mg/l)
Media Life: 3-7 Years 5-10 Years 10+ Years
% Catalyst Ingredient: approx. 1% approx. 10% 75%+
pH Range: 6.8 to 9.0 6.0* to 9.0 5.0* to 9.0
Backwash Flow Rate Requirement: Low Moderate High
Typical Backwash Frequency: Every 3 Days Every 3 Days Daily
  • light weight so relatively easy to backwash

  • less expensive
  • light weight so relatively easy to backwash

  • strong catalyst

  • tolerant of chlorine

  • removes iron, low levels of manganese (pH 8+ recommended), and H2S across a wide pH range

  • durable / long lasting
  • most potent catalyst

  • "supercharged" by chlorine

  • removes very high levels of
    iron, manganese, and H2S
    across a wide pH range

  • less media volume typically required for same job

  • extremely durable / long lasting
  • Disadvantages:
  • limited applications for
    manganese reduction

  • cannot be used when
    H2S is present

  • requires pH 6.8 or greater

  • effectiveness reduce by
    chlorine and organics

  • shorter media life
  • Filox is more effective for high contaminant levels, for manganese reduction, and for the removal of high levels of hydrogen sulfide

  • shorter life than Filox

  • often increases pH level
  • more expensive per cubic foot
    (but you can often use less
    to do the same job!)

  • requires higher flow rates and frequency for effective backwash
  • Price Range: US$987.00


    Iron Rival with Filox Media

    Models: Iron Rival
    Iron Rival
    Iron Rival
    Iron Rival
    Iron Rival
    Iron Rival
    Home Size: 1 - 2
    2 - 3
    3 - 4
    4 - 5
    5 - 6
    Tank Diameter (Inches): 8 9 10 12 13 14
    Total Height (Inches): 52 56 62 60 62 73
    Approx. Installation Space Required (W x D x H"): 8 x 12 x 52 9 x 12 x 56 10 x 12 x 62 12 x 12 x 60 13 x 13 x 62 14 x 14 x 73
    Filox Volume (Cubic Feet): 0.5 0.75 1.0 1.5 2.0 2.5
    Optimal Service Flow Rate (GPM)*: 4 6 8 12 16 20
    Max. Service Flow Rate (GPM): 5 7.5 10 15 20 25
    Backwash Flow Rate @ 40F (GPM): 4.5 6.0 7.0 10.0 12.0 15.0
    Backwash Flow Rate @ 70F (GPM): 6.0 7.0 9.0 12.0 15.0 20.0






    Optimal service flow rates are based on good performance up to about 7 ppm iron and at a pH of 7.5. Reduce service flow rate expectations slightly if your pH is lower or if your iron level is higher especially if concurrent manganese reduction is also an objective. Satisfactory performance can generally be achieved up to the maximum recommended flow rate under most conditions.

    Iron Rival w/Filox Media Specifications:
    Control Valve:Fleck 2510AIO SXT
    Inlet/Outlet Connections:1" MNPT
    Drain Connection:1/2" FNPT up to 7 GPM, 3/4" FNPT for 8+ GPM
    Operating Temperature:36F to 100F (2 to 38C)
    Operating Pressure:20 to 90 psi (1.4 to 6.2 bar)
    Replacement Media:Filox
    Typical Media Life:10 Years+
    Maximum Total Organic Carbon:3 ppm (mg/l)

    Installation / Manuals

    We have designed our Iron Rival systems for ease of installation. We provide a bypass valve with each system. The bypass valve has male 1" NPT threaded fittings. If your pipe diameter is different, you can connect to the bypass with simple adapters available at any hardware store. The drain line connection is female 1/2" NPT for backwash flow rates up to 7 GPM, and female 3/4 NPT for backwash flow rates of 8+ GPM.

    The Iron Rival system is generally installed after the pressure tank or pressure booster if applicable but before all other water treatment equipment.

    We recommend that Iron Rival systems be installed by a licensed plumber, however, your warranty is valid as long as your system is installed in accordance with local plumbing codes and the Owner's Manual.


    Only the best components go into our Iron Rival water treatment systems. They are sourced from some of the leading manufacturers in the business, and assembled at our factory in Canada. You can be assured that only the finest materials have gone into the manufacture of all Iron Rival systems and that the materials used are safe for potable water contact. The following is a list of key system components:

    Item Manufacturer Material Safety Validations
    Valve & Bypass Assembly Pentair PLC
    Milwaukee, WI, USA
    Made in USA
    NSF/ANSI Standard 44
    NSF/ANSI Standard 372
    Media Tank Pentair PLC
    Milwaukee, WI, USA
    Made in USA
    NSF/ANSI Standard 42
    Filox Media North Andover, MA, USA
    Made in Brazil
    NSF/ANSI Standard 61

    Warranty Details

    Iron Rival systems are backed by a comprehensive warranty program.

    Subject to the limitations noted below, Iron Rival system components are warranted by HomePlus Products Inc. to be free of defects in material and workmanship for the following periods:

    Fleck 2510AIO SXT Control Valve: 5 Years*
    Media Tank: 10 Years
    All Other Components (except as noted**): 1 Year

    *Note: Pistons, piston seals, and injectors are considered wear and tear items and require regularly scheduled maintenance and replacement, usually every 2 years. They are warranted for a period of 6 months.

    **Note: Due to the wide variety of potential feed water conditions, there is no warranty on the Filox media or underbed gravel.

    The term of these warranties begins on the date of delivery of the product to the customer and continues until the earlier of:

    • the end of the warranty term noted above; or
    • the date in which the product(s) is/are removed from the original location of installation; or
    • the date in which the original purchases sells or otherwise transfers ownership of the home in which the product(s) was/were originally installed.

    Only products purchased from an Authorized Dealer or HomePlus Products Inc. directly are eligible for this warranty. The products must have been installed and operated accordance with the instructions and operating conditions stated in the Owner's Manual.

    Customer must register his or her warranty with HomePlus products Inc. within 90 days of original purchase for the warranty to remain valid.

    This warranty applies only in Canada and the United States of America.

    In the event that a part is deemed defective, the user must immediately inform HomePlus Products Inc. who will furnish a replacement part at no cost to the user. HomePlus' obligation to the customer shall be limited to the replacement of the defective part by prepaid standard freight to the original point of installation. Expedited shipping is available at the discretion and cost of the customer. When required, the return of defective parts to HomePlus is the responsibility of the customer.

    This warranty does not cover any labour costs including labour costs related to troubleshooting, repair, installation, or maintenance.

    This warranty does not apply to the following situations: misuse; normal wear and tear; neglect; unauthorized repair or damage caused through installation, adaptation, or modification; use in an improper manner or manner inconsistent with the manufacturer's installation, operating, and maintenance instructions; misapplication; wear or deterioration due to environmental conditions; damage occurring during transit; mishandling; improper storage; incorrect supply of water; tampering or alteration; fire, freezing; act of God; or any cause beyond the control of HomePlus Products Inc.

    The original warranty period does not change in the event of part replacement by HomePlus Products Inc.

    This warranty is issued exclusively to the original consumer purchaser of record so long as the product remains installed in the original location of installation, and is not transferable.

    The provisions of the foregoing warranties are in lieu of any other warranty, whether expressed or implied, written or oral (including any warranty of merchantability or fitness for a particular purpose). HomePlus Product Inc.'s liability arising out of the manufacture, sale, or supplying of the products or their use or disposition, whether based upon warranty, contract, tort, or otherwise, shall not exceed the actual purchase price paid by the authorized distributor or consumer for the product. In no event shall HomePlus Products Inc. be liable to the distributor or any other person or entity for special, incidental, consequential or punitive damages (including, but not limited to, property loss, loss of incomes, or loss of use damages) arising out of the manufacture, sale, or supplying of the products, even if HomePlus Products Inc. has been advised of the possibility of such damages or losses. These warranties are governed by the laws of the Province of British Columbia, Canada, and may change without notice.

    To report a warranty problem with your system or request warranty service, please call HomePlus Products Inc. Toll free: 1-866-376-2690

    Birm® is a federally registered trademark of Clack Corporation.
    Katalox Light® is a registered trademark of Watch Water.