Pentek HFPP-PR20 Big Blue Filter Housing – 20” with Pressure Relief, 1” Inlet/Outlet
The Pentek HFPP-PR20 Big Blue #20 Filter Housing is a high-flow, heavy-duty housing built to accommodate 20” x 4.5” Big Blue filter cartridges for whole-house and commercial water filtration. Designed with 1” NPT inlet/outlet ports and constructed from high-flow polypropylene (HFPP), this housing provides durability, reliability, and compatibility with a wide range of cartridge types.
This model features a pressure relief button on the cap for easy cartridge changes—helping release trapped air and preventing water spray during filter maintenance. The housing works with sediment, carbon, and specialty filters, making it versatile for residential, commercial, agricultural, and light industrial use.
Product Details
Key Features
Compatible with Standard 20” x 4.5” Big Blue Cartridges
High-Flow Polypropylene (HFPP) Cap for Strength and Durability
Built-In Pressure Relief Button for Easy Filter Changes
1” NPT Inlet/Outlet for Standard Plumbing Applications
Ideal for Whole House and Commercial Filtration Systems
Specifications
Model: Pentek HFPP-PR20
Housing Style: Big Blue #20
Inlet/Outlet Size: 1” NPT
Pressure Relief: Yes
Housing Material: Polypropylene
Cap Material: HFPP (High-Flow Polypropylene)
Max Pressure: 90 PSI
Max Temperature: 100°F (38°C)
Cartridge Size Compatibility: 20” x 4.5” Big Blue style
Color: Blue sump with black cap
Dimensions
Height: 23-5/8 inches
Diameter: 7-1/4 inches
Inlet/Outlet: 1” NPT
Weight: Approx. 5.0 lbs