Wyckomar UV Replacement Quartz Dome RQD-438 for UV-250

Replacement Quartz Dome RQD-438 for the UV-250

The Wyckomar Quartz Dome together with the Oring keep the water sealed inside the UV reaction chamber and away from the UV lamp, allowing the UV rays to irradiate the water column flowing through the chamber. 

The dome comes with a spring inside to prevent the UV lamp from cracking the quartz upon insertion.