Whole House Big DUO Housing Set (2)

  • Premium 2-STAGE mounted whole house housing set

  • Dual 20" housings offers multi-stage versatility & efficiency

  • No installation, pre-assembled complete system ready to mount

  • Large capacity, high flow rate polypropylene housings

  • Accepts industry standard 20" X 4.5" whole house cartridges

  • 1" FPT inlet and outlet ports for fast flow

  • No Backwashing is needed

  • Listed Price:$215.00
  • Total Saving:$48.00
  • Sales Price:$167.00

Options & Upgrades

$10 Value-Free!

O-Ring for Big & Compact Blue and Clear Housings

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    Customized Water Purification Solutions for your Home

    The APEC BIG DUO 2-stage whole house filter housing set uses two (2) adjoining 20" Big Blue housings to offer multi-stage whole house water filtration versatility and efficiency. Dual housings allow this unit to utilize two distinct specialty filters to address a wider range of contaminants found in different water sources. This is often not possible when using just a single whole house filter.

    Having problems with sediment and chlorine in your shower? No problem, just purchase and install the 20" sediment and carbon cartridges for the BIG DUO housing set. Worried about iron and oil in your tap water? The BIG DUO offers compatible cartridges to treat those contaminants as well. In fact, this customizable housing set works with all industry standard whole house filters within the standard size of 20" length X 4.5" diameter, making it one of the most adaptable and affordable multi-stage whole house filtration systems on the market.

    The BIG DUO housing sets are extremely durable and can withstand a wide range of chemicals in the water as well as large fluctuations in water pressure. The polypropylene (HFPP) cap has 1" FPT inlet and outlet ports for high-flow rate and the 1.25" internal port allows a greater volume of liquid to pass through the HFPP cap more rapidly.

    Note: The BIG DUO housing set is usually placed in the main water line entering the home. While installation is fairly simple, it is our recommendation to have it installed by a licensed plumber.

Performance & Specification

    Housing Set Specifications and Performance Data:

    Model: FH-2BB-20
    Maximum Dimensions 26" H x 9" W x 16.5" L
    Initial Pressure @ Flow Rate 1 psi @ 15 gpm
    Weight 22 lbs
    Maximum Temperature 100ºF
    Maximum Pressure 90 psi
    Input & Output Line Size 1" FPT Bypass Adapter Standard
    (Larger 1 1/2" adapter available)


    Our BIG DUO housing sets can accommodate 20" cartridges that remove sediment, carbon, iron, oil, and other contaminants. In addition, they also protect your appliances, fixtures and pipelines.

    This advanced system is usually placed in the main water line entering the home and generally have capacities to filter up to 50,000 gallons of water before you have to change the cartridge.

    Offering dual housings, the BIG DUO provides greater water purification versatility and efficiency when compared to single whole house filters. It allows you to mix and match and design a customized filtration process specifically for your particular water needs.

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