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compatible replacement AQUAtiva™ water filters and parts

AQUAtiva replacement water filters We have heard many complaints from AQUAtiva™ water filter system owners regarding the high price and lack of availability of original equipment AQUAtiva™ replacement filters. The good news is that the replacement filters and components for AQUAtiva™ whole house water filters, and reverse osmosis water filter systems are standard sizes, and we have many affordable, high quality replacement cartridges available. In fact, in many cases, our cartridges are the very same filters, made by the same manufacturer as the AQUAtiva™ replacement cartridge, for a fraction of the price! You can rest assured that our compatible replacement filters are of the highest quality - they are made by Pentek Filtration of Wisconsin, USA, one of world's largest water treatment products manufacturers.

Please note: Our company is not affiliated with AQUAtiva™ or its parent company, Covenant Air & Water LLC, in any way. We are not (and never have been) an AQUAtiva™ dealer and cannot assist you with any warranty or technical problems with your AQUAtiva™ system.

Replacement filters for the AQUAtiva™ PRISM Reverse Osmosis with BioGuard

The PRISM reserve osmosis system featured 6 stages of treatment, including sediment pre-filter, 2 carbon pre-filters, a reverse osmosis membrane, a UV sterilizer, and a carbon post filter. We are pleased to offer a convenient annual replacement filter package designed to provide you with everything you need for a complete year of operation. You can also purchase replacement filters by the case and save even more!

Stage Description / Model Replace Every... Price
Stage 1 Pentek P25 Sediment Pre-Filter (25 micron)
removes sediment and particulate matter
6 months
Click Here for Info & Pricing
Stage 2 Pentek/FIBREDYNE CFB-10 Carbon Block Filter (10 Micron)
removes chlorine, bad tastes and odors
6 months
Click Here for Info & Pricing
Stage 3 Pentek UDS-10EX1 Combination KDF55 / GAC Filter
removes certain heavy metals to prevent membrane fouling, as well as additional bad tastes, and odors
12 months
Click Here for Info & Pricing
Stage 4 50 Gallon Per Day Thin-Film Composite (TFC) Reverse Osmosis Membrane
removes wide range of inorganic contaminants
every 24-36
MSRP: CDN$72.00
Price: CDN$41.95
You save: $30.05

Stage 5 Pentek UV-4-G-1/4" Ultraviolet (UV) Sterilizer (BioGuard)
kills germs, bacteria, and many viruses
12 months
This item is no longer available
Stage 6 Pentek GS-10CB-5-B-1/4" Activated Carbon Filter
final polishing filter
12 months
alternative: Hydronix ICF-10
Click Here for Info & Pricing

Replacement filters for the AQUAtiva™ Whole House Sediment and AQUAtiva™ Whole House Carbon Water Filters

A number of AQUAtiva™ whole house filter systems included sediment and activated carbon pre-filters contained in 20 inch Big Blue filter housings. The following replacement filter cartridges are recommended:

Description / Model Replace Every... Order Info
Pentek S1-20BB
20 micron pleated cellulose sediment pre-filter
4 to 6 months Click Here for Info & Pricing
Pentek RFC-20BB
Radial flow granular activated carbon filter to remove chlorine, bad tastes, and odors
4 to 6 months Click Here for Info & Pricing

Replacement parts for the AQUAtiva™ Spectra Twin Whole House Water Filter

The AQUAtiva™ Spectra twin tank water filter utilizes multiple media including Chlorigon to reduce chlorine, chloramine, and bad tastes and odors; and an ion-exchange resin to reduce hardness. The system utilizes the TwinFloSXT (8500) twin meter and control valve made by Fleck to initiate and control backwashing and regeneration cycles. We are pleased to offer replacement valves:

Description / Model Price
Fleck TwinFloSXT Control Valve Fleck TwinFloSXT (8500) Twin Tank Control Valve

Please Note: The 8500 series valve is no longer manufactured. We will provide the new 9100 series replacement valve from the same manufacturer.


  • Uses 100% capacity of the tank in service before switching to the second tank, saving salt and water
  • Rinses away hardness reversion and stagnant water before the stand-by tank comes on line in service
  • Regenerates with soft water, keeping the system clean for optimum operating efficiency and minimum maintenance
  • Regenerates immediately when needed for continuous soft water 24 hours a day
  • Valve delivers continuous soft water
  • Meter-initiated regeneration
  • Super capacitor for keeping time during a power outage
If you are looking for a replacement control valve for an Aquativa water softener, please call us toll free at 1-866-376-2690. We can likely help!

* AQUAtiva is a trademark of Covenant Air & Water, LLC.