The filter housing was made of a durable, reinforced polypropylene that is compatible with a variety of chemicals.

This is a primary component in water filtration systems, is made from a durable, reinforced polypropylene, and resists corrosive effects from a variety of chemicals. Topping the housing off is a high-flow polypropylene (HFPP) cap with a 1 1/4" internal port that allows water to pass through rapidly. This coupled with the already larger-than-standard filter capacity make Big Blue Housings popular choices for high flow applications. The extra-wide housing accommodates large 4 1/2" wide filters for increased flow.This housing does have a pressure relief button on the cap.

Data:

Connection: 1" FPT
Dimensions: 23-3/8"x7-1/4"
Flow Rate: 1 psi @ 15 gpm
Max. Temp.: 100 F
Max. Press.: 90 psi
Accepts 4-1/2" diameter filters
Includes: Pentek 150234 1" Big Blue 20" Filter Housing
Cartridges sold separately.
O-Ring Replacement: Pentek 151122
Wrench Replacement: Pentek SW-4