20 Slim Line Filter Housing, 1/2 FNPT

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Pentair 158205 is Tested and Certified by NSF International to NSF/ANSI Standard 42 for material and structural integrity requirements.

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Geekpure Whole House 20 inch Big Blue Water Filter Housing 1-Inch Inlet/Outlet with Wrench and Bracket -4.5 inch x 20 inch

20 Type 316 SS Single Cartridge Filter Housing (Configurable)

RHS-804A - Single Cartridge Housing - RH Series - Shelco

Pentair Pentek 166201 Big Clear Filter Housing, 1 NPT #20 Whole House Heavy Duty Water Filter Housing with Pressure Relief Button, 20-Inch, Blue/Clear : Industrial & Scientific

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5 Type 316L SS Single Cartridge Sanitary Housing with T Style Tri-Clamp Pipe Fittings (Configurable)

Everpure EV910003 A20 Opaque 20 Filter Housing 5 GPM