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Home > Water Filter Brands > Pentek Water Filters > Pentek Filter Housings > PENTEK-150166


Pentek 20-ST Whole House Water Filter System

3/4" inlet/outlet with Valve in Head; Uses 20" x 2.5" Filters

20 Inch Standard Whole House Water Filter System from Ametek, Culligan, USFilter, Pentek
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Product Code: PENTEK-150166
Retail Price: $64.39
  • #20 Standard Whole House Water Filter Housing:
  • The #20 VIH Whole House Water Filter System 150166 is ideal for residential, commercial, and industrial water filter applications.
  • The Valve-in-Head (VIH) patented technology allows for easy water filter cartridge replacement.
  • The Valve-in-Head involves a simple half-turn of the shut-off valve in the cap to shut off the water supply when changing a water filter. No need to purchase additional shut-off valves (saves $10).
  • The pressure release button on the cap allows for release of the whole house water filter pressure in order to more easily unscrew the sump from the cap.
  • Whole house water filter housings extend the life of washing machines, water heaters, and other household appliances by reducing sediment before it reaches the appliances.
  • Leaking and clogging is prevented by the dynamically sealing, self-cleaning o-ring.
  • The 20 inch standard whole house housings have thick walls for increased strength.
  • Connecting two #20 Standard Housings:
  • Two #20 standard housings can be connected with a pipe nipple or pipe union.
  • NP-34 - Use this pipe nipple to connect two #20 Housings with 3/4" Inlet/Outlets.
  • Reducing the 3/4" Inlet/Outlet of the #20 Standard Housings:
  • M3438 - Use this pipe nipple to install the #20 Housing on a 3/8" water line. The nipple reduces the 3/4" inlet/outlet on the housing to fit the 3/8" water line.
  • M3412 - Use this pipe nipple to install the #20 Housing on a 1/2" water line. The nipple reduces the 3/4" inlet/outlet on the housing to fit the 1/2" water line.
  • Pentek #20 VIH Water Filter Housing Specs:
  • Dimensions: 22-5/8" x 5-1/8" (575 mm x 130 mm)
  • Maximum Temperature: 125°F (51.7°C)
  • Initial ∆P (psi) @ Flow Rate (gpm): 4 psi @ 8 gpm (0.3 bar @ 30 L/min)
  • Maximum Pressure: 125 psi (8.62 bar)
  • Pentek #20 VIH Housing Materials of Construction:
  • Housing: Polypropylene (Blue)
  • Cap: Reinforced Polypropylene
  • Valve Parts: Delrin
  • O-Ring: Buna-N
  • Manufacturer: Pentek 150166
  • #20 VIH Whole House Replacement Water Filter Information:
  • The #20 standard whole house system uses 20" x 2.5" water filter cartridges. The water filter cartridge is not included allowing you to select the best water filter for your water filtration needs. There are two water filter options in the Related Products section below. There are many more 20" x 2.5" water filters available on our 20" x 2.5" water filter page.
  • Sediment water filters reduce dirt, sand, silt, sediment, rust particles, and scale particles. Choose from one of our sediment water filters at the 20" x 2.5" Filter Page.
  • Drinking water filters produce healthier, better-tasting drinking water. Choose from one of our carbon drinking water filters at the 20" x 2.5" Filter Page.
  • The water filter cartridge life depends on the water filter cartridge purchased and the water quality.
  • #20 Housing Water Filter System Manual:
  • The 20" Valve-In-Head Whole House Water Filter System is easy to install.
  • The whole house system has 3/4" inlet/outlets for easy installation on the 3/4" main cold water line. If you have a 1/2" water line, you can use a reducer nipple to reduce the inlet/outlet down to the 1/2" size.
  • #20 Housing Product Manual
  • #20 Housing Installation Manual

Whole House Water Filter Systems Overview Video:



Quantity Unit Price
1 - 2 $60.59
3 - 5 $58.79
6+ $56.99
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