Watts TR GRVXCIPS 8 6 6 Part of the TR Series Sheet Drain 2 Body Material Lead Free 2 Body Material Lead Free Cast Copper Silicon Alloy Brand Watts Buy American Act Compliant YES Corrosion Resistant Coating No Disc Material Elastomer EAN 098268332391 Gauge Option No Gauge High Pressure Reduced Pressure Range Does Not Apply To Product High Pressure Reduced Pressure Setting Does Not Apply To Product Inlet Connection Size 3 4 IN Inlet Connection Type Female Threaded Inlet Thread Type NPT Lead Free YES Maximum Operating Temperature Fahrenheit 180 Maximum Working Pressure BAR 27 UPC 098268580686 the unit has a 8 inch CIPS (Cast Iron Pipe Size) coupler for easy connection to the underground supply (AWWA C900 PVC) and (Ductile Iron Pipe) a 8 inch industry standard grooved end connection (AWWA C606) on the building side for easy connection to the overhead fire sprinkler system CIPS inlet x grooved outlet