4" X 4" Ductile Iron Flanged Suction Diffuser Rear Strainer Pullout, Taco Rear Strainer Pullout (Rsp) Suction Diffuser with 4" System X 4" Pump Flanged Connections, This Suction Diffusuer Features Integral Cast Straightening Vanes, An Oversized Body Cylinder, A Disposable Fine Mesh Start-Up Strainer, And A Ductile Iron Body, Maximum Operating Pressure:175 PSI, Maximum Operating Temperature:250F., Weight:94 Lbs, In Bulk, Made in USA.(Alt SD040040), Surface Rust As Pictured