Check Valve, Compatible Pipe Size 2 1/2 in, Body Material Cast Iron, Connection Type Flanged, Compatible with Grainger Part Number 1XLY9, 1XMA3, Compatible with Manufacturer Model Number 30SPM10, 50SPH10, Compatible with Brand Goulds, Compatible with Pump Type Sprinkler Pump, Includes Gasket, (4) Bolts, Maximum Media Temperature 160 Degrees F, Maximum Water Pressure 85 psi