• Sumps and cap material is FDA grade polypropylene.
• O-ring material is EPDM.
• Maximum operating pressure is 125 psi.
• Standard Housings temperature operating range is 40-125 F.
• Tested to 150,000 cycles from 0 to 125 psi.
• Burst tested to 500 psi.

Cartridge Housings & Parts*

Nelsen Countertop Water Filter (1/4" connection, uses 2-1/2" x 9-3/4" cartridges)  Nelsen Thin-Line and Pentek Slimline Housings (1/4" and 3/8" connections, uses 2-1/2" x 9-3/4" cartridges)  FlowMatic and Nelsen Heavy-Duty and Pentek Standard Housings (3/4" connection, uses 2-1/2" x 9-3/4" cartridges)  FlowMatic Heavy-Duty and Nelsen and Pentek Double-Duty Housings (3/4" connection, uses 2-1/2" x 20" cartridges)  Pentek Valve-in-Head Housings (3/4" connection, uses 2-1/2" x 9-3/4" cartridges)  Nelsen and Pentek Hot Water Housings (3/4" connection, uses 2-1/2" x 9-3/4" cartridges)  FlowMatic Full-Flow and Pentek Whole House (Big Blue) Housings (1" and 1-1/2" connections, uses 4-1/2" x 9-3/4" cartridges)  FlowMatic Full-Flow and Pentek Whole House (Big Blue) Housings (1" and 1-1/2" connections, uses 4-1/2" x 20" cartridges)  FlowMatic Brand Mounting Brackets, Wrenches and O-Rings  Nelsen Brand Mounting Brackets, Wrenches and O-Rings  Pentek Brand Mounting Brackets, Wrenches and O-Rings