Pentair Air Relief Strainer, 304 Stainless Steel Mesh | 172855 Square Fire & Water Bowl Technicians replace diffusers during pump

Technicians replace diffusers during pump rebuilds when inspecting impeller wear or diagnosing low flow issues

It connects the vessel wall to internal plumbing feeding circulation pumps

allowing you to spend more time relaxing and less time maintaining

supporting the movement of water through filters

Pentair Air Relief Strainer, 304 Stainless Steel Mesh | 172855 Square Fire & Water Bowl Technicians replace diffusers during pumpWhat This Part Is Used For Pentair 172855 Strainer Air Relief 304 Stainless Steel Mesh is a replacement air relief strainer for compatible Pentair filter assemblies. It features a stainless steel mesh design for debris capture. Why This Part Matters A clogged or damaged strainer can interfere with proper air release. Replacing it restores reliable venting and pressure control. Stainless steel mesh supports durability in pool environments. Key Features