4.5 X 20 Good Better Best

Best 4.5 X 20 Whole House Water Filter - Transparent


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Inlet / Outlet

Our best rated, heavy duty, whole house water filter system. Choose from 3/4 inch, 1 inch or 1.5 inch inlet  / outlet NPT. Transparent housing with steel mounting kit & 4.5 x 20 inch - 5 micron dirt / sediment cartridge.


  • 4.5 x 20 inch transparent housing
  • 5 micron dirt / sediment cartridge
  • Filter wrench
  • Mounting bracket with screws

This system is rated as "best" because it has a transparent sump which provides visibility of the cartridge condition. The PWFHT4520BT comes with a steel mounting kit and a 4.5 x 20 inch - 5 micron dirt / sediment cartridge.

This filter housing is manufactured from the highest quality NSF listed, FDA grade materials. A built-in pressure relief button and a spanner wrench are included for easy periodic cartridge change out. Available with 3/4 inch, 1 inch or 1.5 inch  NPT inlet / outlet. Please note replacement o-ring is model PWFRG357.


  • for use with industry standard size cartridge 4.5 inch O.D. x 20 inch
  • flow rate 40 GPM
  • temperature range 40-100 degrees F
  • pressure range 20-80 psi
  • 7 1/4 inch (W) x 24 inch (H)

  • Model: PWFHT4520BT

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