This is a ATS4-810 UV replacement lamp for Aqua Treatment Service/ ATS UV systems. This uv lamp is guaranteed to work in your Aqua Treatment Service / ATS system. When you purchase from us, you are guaranteed a quality replacement part that is designed to keep your water safe. We support our products and will gladly assist you with any pre or post-purchase questions. All of our products carry a 1 year warranty to give you peace of mind with your purchase. If you need the quartz sleeve for this system you can find it here: EV-20E UV Quartz Sleeve
What systems does this UV bulb fit?
EV20E, GDS-20, BIO12, PFC-20, APUV-12
This lamp goes by the following part numbers:
ATS4-810, GPH810T5L/4
ATS® is the registered trademark of Aqua Treatment Services Inc.. ®, the manufacturer of the ATS SE/DWS® ultraviolet systems. WaterFiltrationSupply.com is not affiliated or in association with Aqua Treatment Services, Inc.®. We do not sell originally branded ATS® products. WaterFiltrationSupply.com however sells different brands of ultraviolet lamps and replacement parts that are compatible with ATS SE/DWS® systems and are of equal or greater quality.