Big Blue Housings (BB 20") for the Whole-House

premium whole house water filter filtration . Self match system


Durable, Highest quality whole house filter housing

Large capacity housing for high flow applications

Accepts 4-1/2" diameter standard 20" Big Blue cartridges

No Backwashing is needed

1" FPT inlet and outlet ports for fast flow

Pressure relief button on inlet side of cap

NSF certified component

Highest Pressure and Chemical Withstanding Ability

This premium Big Blue filter housing offers the versatility to meet all of your large capacity filtration needs, including high-flow and heavy-sediment applications. The extra large housing allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications. These housings are constructed of durable reinforced polypropylene and 20" in length.

The high-flow polypropylene (HFPP) cap has 1" FPT inlet and outlet ports. The 1-1/4" internal port allows a greater volume of liquid to pass through the HFPP cap more rapidly.

Big Blue housings can withstand a broad range of chemicals in the water. Also they can withstand a wide range of differences in water pressure, plus they are equipped with pressure-relief buttons for ease of filter change. They accept a wide variety of 4-1/2" diameter x 20" length cartridges for different applications.

Note: These inline water filters are usually placed in the main water line entering the home. Installation is fairly simple, it is best installed by a licensed plumber.

Housing Specifications and Performance Data:

Maximum Dimensions
23-3/8" x 7-1/4"
Flow Rate
40- 50 gpm
Initial Pressure Drop/Flow Rate
1 psi @ 15 gpm
7 lb
Maximum Temperature 100 F
Maximum Pressure 90 psi


Sample Setup for Whole House Water Filters:


Differences Between RO, Softeners, and Whole House Filters

This is one of our most frequently asked questions. We've found that most consumers do not have a clear concept on the differences between drinking water systems and whole house filters or softners. To help you make the right choices, here is a summary:

Reverse Osmosis Drinking Water Systems
Water Softeners
Whole House Water Filters
Filtration type Point of Use Point of Entry
(for the whole house)
Point of Entry
(for the whole house)
Output water to 1-3 dedicated drinking water faucets Every faucet in the house Every faucet in the house
Filtration level 0.0001 micron, very fine, removes up to 99% of most chemical & dissolved contaminants Catalytic process, no filtration 10-30 micron, basic filtration to remove sediments, chlorine, odors
Water quality "bottled water quality" safe drinking water Softened water only, not safe drinking water Not recommended for safe drinking water
Output capacity 45-90 gallons a day
(idea for drinking, cooking only)
Unlimited amount
(for bath, toilets, laundry, dishes)
Unlimited amount
(for bath, toilets, laundry, dishes)





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