Pentair Pentek Big Blue Filter Housing, 1 NPT #20 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue.

Includes wall mounting bracket (pictured) and housing wrench (not pictured).

Fits all 20 x 4.5 cartridges. The filter options:

MPP Sediment filter: Remove sand, dirt, and sediment.

GAC/ CTO Carbon filter: Remove chlorine, taste, and odors.