Pentek - Standard 10" Valve-In-Head Filter Housing - Black Cap / Blue Sump - 3/4" NPT PFR402Q-650 The thin-film composite layer allows

The thin-film composite layer allows only pure water molecules to pass through while rejecting dissolved solids

indicating resin exhaustion

High Capacity Filtration

Always add water to the powder slowly while stirring rather than dumping powder into water

Replacing Your Quartz Sleeve

Pentek - Standard 10" Valve-In-Head Filter Housing - Black Cap / Blue Sump - 3/4" NPT PFR402Q-650 The thin-film composite layer allowsThe Pentek 3 4" NPT Valve In Head filter housing combines a durable polypropylene construction with integrated shutoff valves and pressure relief in a single compact unit. Designed for residential, commercial, and light industrial applications, this 10 inch standard housing eliminates the need for external plumbing valves while simplifying cartridge maintenance. SPECIFICATIONS Pentek Standard 10" Valve In Head Housing Cartridge Compatibility 10" x 2.