About this item:

20-inch Clear housing,3/4″NPT inlet/outlet, with a plastic wrench,4 x screws, and metal bracket. Housing only, filter cartridges are sold separately.

CONVENIENT-Clear housing allows you to see when you need to change filters and everything else works as it should

HIGH QUALITY-Fits all standard sized 4-1/2 inch diameter industry 20-inch whole house cartridges. Large capacity housing for high flow applications

It is installed at the main water supply and produces pure water for your entire home. Enjoy better water from every tap and every appliance in the whole house.