PUREPLUS FHN10BB Whole House Water Filter Housing, 10" x 4.5", 1" NPT

When you want filtration on the home’s incoming water line, a whole-house housing offers a different approach from treating water at just one tap. The PUREPLUS FHN10BB is designed for sediment pre-filtration and accepts standard 10" x 4.5" cartridges, giving you flexibility to choose a cartridge type suited to your setup. Its 1" NPT ports connect the housing within a compatible main-line installation, while the pressure gauge provides a reading at the filter.

Use it as a pre-filtration stage upstream of household plumbing and appliances.

Getting the most from it

Install the housing on the main water line where it can serve downstream fixtures and equipment. The product is recommended for tap or well water, and the sediment-cartridge format makes it relevant when pre-filtration is part of your household water setup. By positioning filtration before water reaches items such as water heaters, washing machines and shower heads, the system is intended to provide coverage beyond a single point of use.

The housing fits standard 10" x 4.5" cartridges, including sediment, sediment-and-carbon, pleated and carbon options listed for this system. That lets you select a cartridge style for your filtration needs rather than being limited to one listed material. For installation and cartridge changes, first release pressure using the red pressure-relief valve, the supplied wrench is used to open the housing.

Technical details

• Type: Whole-house water filter housing for sediment pre-filtration
• Model: FHN10BB
• Cartridge size: 10" x 4.5"
• Port: 1" NPT
• Housing: Blue polypropylene, brass threaded connections
• Monitoring: Pressure gauge
• Included components: Filtration system, wrench and pressure gauge
• Installation hardware: Steel mounting bracket, four screws and O-ring
• Recommended water source: Tap or well water

Benefits

A main-line installation is useful when the goal is to place a filtration stage upstream of several household outlets, rather than adding treatment at only one faucet. The pressure gauge gives you a visible pressure reading at the housing, and the replaceable cartridge format supports choosing among the compatible styles listed for the system. Together, these features make it a practical fit for a planned pre-filtration setup where access to the housing is available for cartridge changes.

Buyers often describe installation and filter replacement as straightforward, and some appreciate being able to read pressure at the gauge. Feedback on housing durability is mixed, with some customers reporting leaks. These experiences are individual feedback, not a substitute for following the installation instructions and releasing pressure before servicing the housing.

Should you buy it?

A solid pick if you want a whole-house sediment pre-filter with 1" NPT connections and the flexibility to use standard 10" x 4.5" cartridges. It suits a main-line installation serving multiple downstream fixtures or appliances, with a gauge for checking pressure and a wrench supplied for housing access. Choose it when that central pre-filtration approach matches your water setup and you want cartridge-style options for routine filter changes.