Alpine Pure filter housing for 10 inch Full-Flow Big Blue/Jumbo filter cartridges; Made from Food grade materials. Heavy Duty 10" BIG Blue with 3/4" (20mm) ports. Max 90 psi. These 10" jumbo housings are used for whole house systems as a single unit or when joined together with 3/4" nipples and a twin SS bracket. Suitable for all 10" X 4 1/2" filter cartridges. Complete as shown with a SS bracket, SS Screws, and Spanner. Please note this filter does not include any filter cartridge.