Cartridge Housing 4.5” x 20″ Bigblue, 1.5 NPT


Cartridge Housing for water filter BB 20″.

Raw material: Polypropylene

Sizes: for cartridges 4.5″ x20″.

NPT connections: 1 1/2″.

Product images are demonstrative and may vary from the physical product.


BigBlue Filter Housing 4.5″ BB

They are made of reinforced polypropylene in blue, white and transparent, FDA approved. These cartridge housing can be used in applications such as pre and post filtration of reverse osmosis, domestic filtration systems, restaurants, ice machines and many more.

They are tested and certified by NSF International to NSF/ANSI standards, for material and structural requirements only.

They are certified under NSF/ANSI 42 for structural and material integrity only.

Available in different colors. Most 10″ and 20″ cartridges can be used. Caps are available in 1″ and 1 .5″ Female NPT.

They are ideal for reverse osmosis systems, pre and post filtration, ice machines, and other applications.


These are highly durable commercial housings for 10″ and 20″ filters. HF5 Series housings have excellent chemical resistance and are ideal for many residential, commercial and light industrial applications.

They accept 4.5″ Big Blue cartridges in diameter and offer larger connections for higher liquid flow. They are ideal for your high capacity and high flow applications and are made of durable polypropylene.

Filter housing for water filters.

Additional information


2.5 "x10", 2.5 "x20", 4.5 "x10", 4.5 "x20"


1/2" NPT, 3/4" NPT, 1" NPT, 1.5" NPT, 1/4" NPT


Blue, Transparent