USWF Replacement for 602733 Quartz Sleeve | Fits the VIQUA E/E+/E4/E4+/E4-V, Pro 7, & UVMax 28 Series UV Systems Harmsco 12 is a replacement controller

12 is a replacement controller for the USWF-4C101

This valve protects your system against problems such as overheating that can occur during periods of no water flow

hydrogen peroxide breaks down into water and oxygen after treatment -- leaving no chemical residue in the finished water

The D-20A is the newer model of the Culligan D-20

this filter will keep your water and ice tasting fresh and clean for up to six months

USWF Replacement for 602733 Quartz Sleeve | Fits the VIQUA E/E+/E4/E4+/E4-V, Pro 7, & UVMax 28 Series UV Systems Harmsco 12 is a replacement controllerThe quartz sleeve is an important part of the UV water treatment system. It protects the UV lamp from coming in contact with the water while allowing the UV light to permeate the water. Minerals from the water will build up on the sleeve over time causing the sleeve to become cloudy not allowing the UV light to permeate the water as effectively. How quickly the minerals build up on the sleeve will vary depending on your water hardness, and if you have