The Pentek 150233 #20 Big Blue w/PR Button 1 NPT Housing (PR) pressure relief button offers 1 psi working pressure and 15 GPM. Great housing for OEM systems build 1 or 2000 and these filter housings will do the job. These housings are built to last, and constructed of durable reinforced polypropylene. Pentek also offers these housings in both 10″ and 20″ lengths. They accept a wide variety of 4½” diameter cartridges in either 10″ or 20″ lengths.
Pentair Big Blue and Big Black Heavy Duty Filter Housings offer the versatility to meet all of your large-capacity filtration needs, including high flow and heavy-sediment applications. The extra large housing allows for
greater cartridge capacity, reducing the number of vessels required for high flow-rate applications. The High-Flow Polypropylene (HFPP) cap is available with 3/4″, 1″ or 1-1/2″ NPT inlet and outlet ports. The 1-1/2″ internal port allows a greater volume of liquid to pass through the HFPP cap more rapidly. Big Blue and Big Black Housings are compatible with a broad range of chemicals and are available with or without a pressure relief button. They accept a wide variety of 4-1/2″ diameter cartridges.
Watts Water part# S7562A