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Sterilight SCM-320 Ultraviolet (UV) Sterilizer

Sterilight SCM-320

The Sterilight SCM-320 has been replaced by the
Viqua VH410M
which features:

Longer Warranty
Compact Design


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Sterilight SCM-320

This item has been discontinued by the manufacturer.
It has been replaced by the Viqua VH410M, which offers a Longer Warranty and a Compact Design.

Sterilight Model SCM-320 Replacement Parts & Accessories

Replacement Lamp/Sleeve Combo
Part#:SHO320-QL

Replacement Lamp/Sleeve Combo<br>Part#:SHO320-QL

MSRP: US$169.00
Our Price: US$144.00
You save: $25.00


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Sterilight S320RL-HO
Replacement Lamp

Sterilight S320RL-HO <br>Replacement Lamp

MSRP: US$136.00
Our Price: US$114.00
You save: $22.00


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Sterilight QS-320
Replacement Sleeve

Sterilight QS-320 <br>Replacement Sleeve

MSRP: US$64.00
Our Price: US$53.00
You save: $11.00


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Viqua SOL-Plus-1.0
Solenoid Shut-off Kit

Viqua SOL-Plus-1.0 <br>Solenoid Shut-off Kit

MSRP: US$519.00
Our Price: US$442.00
You save: $77.00


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Viqua 10 GPM
Flow Restrictor

Viqua 10 GPM <br>Flow Restrictor

MSRP: US$104.00
Our Price: US$89.00
You save: $15.00


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Viqua 12 GPM
Flow Restrictor

Viqua 12 GPM <br>Flow Restrictor

MSRP: US$104.00
Our Price: US$89.00
You save: $15.00


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Sterilight C1 UV
Intensity Monitor Sensor

Sterilight C1 UV <br>Intensity Monitor Sensor

MSRP: US$438.00
Our Price: US$373.00
You save: $65.00


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CoolTouch Temperature
Management Valve

CoolTouch Temperature <br>Management Valve

MSRP: US$200.00
Our Price: US$170.00
You save: $30.00


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Sterilight Cobalt Monitored
Series Replacement Ballast

Sterilight Cobalt Monitored<br>Series Replacement Ballast

MSRP: US$492.00
Our Price: US$419.00
You save: $73.00


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The Sterilight SCM-320 Ultraviolet (UV) water sterilizers are popular and economical choices for average whole house water purification to kill bacteria (including coliform and e.coli), viruses, cryptosporidium, giardia, and a wide range of other microbioogical contaminants, where the maximum required flow rate is not greater than 10.0 gallons per minute (GPM) or 37.8 litres per minute (LPM).

The Sterilight SCM-320 (part of Sterilights's Cobalt Series) include many popular convenience features including a visual "lamp on" indicator light, audible lamp failure alarm, and LED display that indicates lamp life remaining and total controller run time. They also features a stainless steel reactor chamber, a fire-polished domed quartz sleeve, and Sterilights' popular Sterilume™-HO coated low pressure germicidal UV lamp which can be easily changed without interrupting the water flow. It also incorporates Sterilight's Cobalt controller which automatically senses line voltage between 100 and 240 volts for consistent UV output and performance in varying electrical operating conditions.

The SCM-320 is a monitored system so comes with a UV intensity monitor and it CAN be connected to an emergency solenoid shut-off valve (not included).

Pre-treatment Requirements:

All UV sterilizers required sediment pre-filtration to reduce or eliminate the possibility that a targeted contaminant could "hide" behind a sediment particle in the "shadow" of the UV light and therefore not receive a full dose of UV light. Accordingly, the manufacturer strongly recommends sediment pre-filtration down to a level of 5 microns or smaller.

Water exceeding 120 ppm in hardness (7 grains per gallon) should be softened to reduce the risk that hard water mineral scale will build-up on the UV sleeve thereby reducing UV light distribution into the UV chamber. Similarly, iron levels exceeding 0.3 ppm or manganese levels exceeding 0.05 ppm should also be treated to prevent staining of the UV sleeve.

Elevated levels of certain other contaminants, such as tannins, can cause a reduction in UV transmittance (the ability of the water to transmit UV light). If the UV transmittance (UVT) of your water is less than 75% after the above-mentioned pre-treatment, activated carbon filtration may be desirable to improve UV transmittance. The majority of deep wells have a UVT of 85% or greater. If your UVT is unknown, select a model with a higher flow rate capacity then you feel you will really require (this will provide a higher UV dose at your desired flow rate), or add an activated carbon pre-filter to your system. We recommend the following pre-filter equipment:

Sterilight SCM-320 Specifications
Applications average home
Max. Flow Rate
(UV dose >30 mJ/cm2)*
13 GPM (49.2 LPG)
Max. Flow Rate
(UV dose >40 mJ/cm2)*
10 GPM (37.8 LPM)
Water Chamber Material 304 Stainless Steel
Chamber Length 22.8 inches / 57.9 cm
Chamber Diameter 3.5 inches / 8.9 cm
Controller Size 9.4 x 3.2 x 2.5 inches
(24.1 x 8.1 x 6.4 cm)
Lamp Sterilume-HO
Model S320RL-HO
Sleeve Quartz
Model QS-320
Electrical 100-240v, 50/60HZ
Power Consumption 42 watts
Lamp Power 36 watts
Inlet / Outlet Plumbing Ports Combo - 3/4" FNPT / 1" MNPT
UV Intensity Monitor Has Feature
"Power-On" Indicator Light Has Feature
Audible Lamp Failure Alarm Has Feature
Lamp Replacement Reminder Has Feature
LED Display: Lamp Life Remaining, Total Controller Runtime Has Feature
Warranty Reaction Chamber: 7 years
Lamp: 1 year
All Other components:2 years

*Note: Maximum recommended flow rates based on 95% UV transmittance. Actual dosage depends on flow rate, water quality, and maintenance (cleaning ov UV sleeve). UV dosage will be lower when the UV transmittance capacity of the water drops below 95% - if in doubt, select a model rated for a higher flow rate than you actually require. We recommend a UV dose of 40 mJ/cm2.

Feed Water Quality Parameters
Iron 0.3 ppm (0.3 mg/L)
Manganese 0.05 ppm (0.05 mg/L)
Tannins 0.1 ppm (0.1 mg/L)
Turbidity < 1 NTU
Hardness < 120 ppm (7 grains / gallon)
UV Transmittance (UVT): 75%
Maximum Temperature: 104F (40C)
Maximum Pressure: 125 psi
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