This is an ExactFit UV ATS4-450 compatible UV replacement lamp for Aqua Treatment Service/ ATS UV systems. All of our products carry a 1 year warranty to give you peace of mind with your purchase. If you need a quartz sleeve for this system you can find it here: ATS-476D Quartz Sleeve
What systems does this UV bulb fit?
DWS-8V, EV-8E, SE-8V, SL-8V, GDS-8
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.