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150166 Pentek Whole House Filter System

Price $63.99 List Price Price $91.41 Save 29%
Availability: In Stock - Free Shipping
Fits standard 3/4-inch water lines
  • Well-suited for residential, commercial and industrial water filter applications
  • Valve-in-Head (VIH) patented technology allows for easy water filter cartridge replacement with a simple half-turn of the valve in the cap to shut off the water supply
  • Valve-in-Head design involves a simple half-turn of the shut-off valve in the cap to shut off the water supply (no additional shut-off valves needed, saving you money)
  • Pressure release buttonáon the cap allows for a more manageable removal of sump from cap
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The Pentek 150166 Standard Whole House Water Filter System can extend the life of washing machines, water heaters and other household appliances by reducing sediment before it reaches them. It can also be used with carbon filters to reduce unpleasant taste and odor issues. The filter housing is built with thick walls for increased strength, while leaking and clogging is prevented with a dynamically sealing, self-cleaning o-ring. The Valve-in-Head design saves you money, since no additional shut-off valves are required for operation. The 150166 accommodates a wide variety of filter cartridges; simply purchase the 20-inch x 2.5-inch filter of your choice.
Package Qty1
Used In BrandsPentek
Manufacturer's Id150166
Actual Size (in)22 5/8 inches (height) x 5 1/8 inches (width)
Actual Size (cm)57.4675 x 13.0175
Materials of ConstructionHousing: Polypropylene, Cap: Reinforced Polypropylene, O-Ring: Buna-N, Valve Parts: Delrin
Maximum Operating Pressure (psi)125
Maximum Temperature (°F)125
Flow Rate (gpm)8.00
Flow Rate (lpm)30.28
Fitting Size (inches)3/4 inch

Reduced Contaminants

The PENTEK-150166 is comparable with the following part numbers


Installation Guide

User Guide


  1. The 20 inch Valve-In-Head Whole House Water Filter System is easy to install
  2. The whole house system has 3/4-inch inlet/outlets for easy installation on the 3/4-inch main cold water line
  3. If you have a 1/2-inch water line, you can use a reducer nipple to reduce the inlet/outlet down to the 1/2-inch size