Big Blue 20 Inch Whole House Water Filter Housing, 1 Inch NPT, Heavy Duty HFPP Cap With Pressure Relief Button, Fits All 20 Inch Big Blue Cartridges, High Flow Polypropylene Housing for Maximum Water Flow, Black and Blue

Heavy-Duty 20-Inch Filter Housing for a single unit
✔️ Single housing for 20-inch filter cartridges with 1" NPT HFPP cap

This heavy-duty, 20-inch whole-house filter housing is designed for high-flow residential filtration, compatible with standard 20x4.5-inch cartridges. It features a 1" NPT inlet/outlet on the HFPP cap and an extra-large body to reduce the number of vessels needed in high-flow setups.

✅ Fits standard 20-inch x 4.5-inch cartridges
✅ 1" NPT inlet and outlet on HFPP cap for easy hookup
✅ Extra-large housing reduces vessel count for high-flow setups
✅ HFPP cap supports 3/4", 1", or 1-1/2" NPT ports
✅ Does not include mounting hardware or wrench
✅ Compatible with a broad range of chemicals

💡 What is a filter housing used for in a home water system?

This handy unit holds cartridges to trap sediments and contaminants as water moves through your home's filtration setup.

- Cartridge-based filtration for whole-house water protection
- Accepts standard 20-inch x 4.5-inch cartridges
- HFPP cap with pressure relief for safe, high-flow operation
- Helps protect plumbing and appliances from sediment and contaminants
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