The Pentek Big Blue Housing, 150236, 1 1/2" 20" Filter Housing is an extra wide housing that will accommodate large 4.5" wide filters.
Large capacity housing suitable for high flow applications Pressure-relief/bleed button on inlet side of cap Accepts 4-1/2" diameter cartridgesBig Blue 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 1-1/2"NPT inlet and outlet ports. Big Blue housings are compatible with a broad range of chemicals. They accept a wide variety of 4-1/2" diameter cartridges in 20" lengths.