Pentek Filter Housing Cap with Pressure Relief Button in Black

The Pentek 154166 one-inch cap for Big Blue housings is a black cap made of durable polypropylene, which can be used in the unlikely event of damage to your filter system’s current cap. A 1-1/4-inch internal port allows a greater volume of liquid to pass through the cap more rapidly. It is a versatile replacement for various systems like the HD-950, 20-BB, W10-PR, W2010-PR , and many others.

• 1 in. NPT inlet and outlet ports for a tight fit with your existing plumbing
• Makes filter changes easier with a red pressure release button
• Made of high-flow polypropylene
• Maximize your investment by protecting your cap and sump against freezing