Pentair EQ Series 1/4" MPT Pressure Relief Valve (350087Z) adhesives The diffuser plate helps position

The diffuser plate helps position and support key internal components across a broad Challenger pump horsepower range

The Non-M7 designation matters because temperature sensors need to match the intended platform if they are going to communicate and behave correctly within the system

Designed for service work on Hayward circulation equipment

The 2 inch size and included O-ring relationship give this part practical value because closure pieces work best when the plug and seal are intended to work together

Confirm load rating

Pentair EQ Series 1/4" MPT Pressure Relief Valve (350087Z) adhesives The diffuser plate helps positionThe Pentair EQ Series 1 4"MPT Pressure Relief Valve is a commercial pump replacement part designed for compatible Pentair pool and spa equipment. This item is intended to replace a worn, damaged, missing, or hard to service original component and supports repair and maintenance of compatible high capacity pump systems. It is a practical choice for technicians, service teams, and homeowners working to keep equipment dependable and properly maintained.