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Sterilight S1Q-PA Ultraviolet (UV) Sterilizer

Sterilight S1Q-PA

The Sterilight S1Q-PA has been replaced by the
Sterilight S2Q-PA
which features:

Longer Warranty
Higher Flow Rate


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Sterilight S1Q-PA

This item has been discontinued by the manufacturer.
It has been replaced by the Sterilight S2Q-PA, which offers a Longer Warranty and a Higher Flow Rate.

Sterilight Model S1Q-PA Replacement Parts & Accessories

Replacement Lamp/Sleeve Combo
Part#:S287-QL

Replacement Lamp/Sleeve Combo<br>Part#:S287-QL

List Price: CDN$144.00
Our Price: CDN$122.00
You save: $22.00


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Sterilight S287RL
Replacement Lamp

Sterilight S287RL <br>Replacement Lamp

List Price: CDN$144.00
Our Price: CDN$122.00
You save: $22.00


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Sterilight QS-001
Replacement Sleeve

Sterilight QS-001 <br>Replacement Sleeve

List Price: CDN$65.00
Our Price: CDN$55.00
You save: $10.00


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Sterilight Silver Series
Replacement Ballast

Sterilight Silver Series<br>Replacement Ballast

List Price: CDN$422.00
Our Price: CDN$359.00
You save: $63.00


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The Sterilight S1Q-PA Ultraviolet (UV) water sterilizer is a popular and economical choice for point-of-use applications with flow rates up to a maximum of 2.0 gallons per minute (GPM) or 7.5 liters per minute (LPM). It is a very popular choice as post treatment after an under sink water filter, or for treating water at a single faucet, water fountain, or similar low flow rate application.

The Sterilight S1Q-PA (part of Sterilights's Silver Series) includes many poluar 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. The S1Q-PA also features a stainless steel reactor chamber, a fire-polished domed quartz sleeve, and Sterilights' popular Sterilume™-EX coated low pressure germicidal UV lamp which can be easily changed without interrupting the water flow. It also incorporates Sterilight's Silver controller which automatically senses line voltage between 100 and 240 volts for consistent UV output and performance in varying electrical operating conditions.

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 S1Q-PA Specifications
Applications point-of-use
Max. Flow Rate
(UV dose >30 mJ/cm2)*
2 GPM (7 LPG)
Max. Flow Rate
(UV dose >40 mJ/cm2)*
1.5 GPM (5 LPM)
Water Chamber Material 304 Stainless Steel
Chamber Length 15.0 inches / 38.1 cm
Chamber Diameter 2.5 inches / 6.4 cm
Controller Size 7.3 x 3.2 x 2.5 inches
(19.0 x 8.1 x 6.4 cm)
Lamp Sterilume-EX
Model S287RL
Sleeve Quartz
Model QS-001
Electrical 100-240v, 50/60HZ
Power Consumption 19 watts
Lamp Power 14 watts
Inlet / Outlet Plumbing Ports 1/4" MNPT
"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