Pentair 1 lb Stainless Steel Spring Check Valve | 072523 C9494 On 25-inch System 3 filters

On 25-inch System 3 filters that have been in service for several seasons

Clipper Spas

the PA137 delivers a uniform pore structure throughout the filter media — resisting channeling and thread migration that can compromise filtration performance over time

Pentair large stainless steel niches are available in different hole-count configurations — ordering the wrong ring is the most common fitment error on this component

Pentair 1 lb Stainless Steel Spring Check Valve | 072523 C9494 On 25-inch System 3 filtersOEM Replacement Spring Check Valve for Pentair Pool Systems The Pentair 1 lb Stainless Steel Spring Check Valve (072523) is the OEM replacement check valve for Pentair pool and spa plumbing systems requiring a 1 lb spring loaded, stainless steel check valve assembly. What It Does This spring loaded check valve allows flow in one direction while preventing backflow through the line. The stainless steel spring provides consistent closing force rated at