Model DA1 Rev E Pressure Reducing Regulator; 2" Line Size; Carbon Steel Body With Carbon Steel Spring Chamber; Sales Kit A; P7 17-4PH Stainless Steel Trim, 316L Stainless Steel Cage, Polyurethane Seat, Fluorosilicone Diaphragm, Fluorosilicone Static Seal, Stainless Steel/PTFE U-Cup Dynamic Seal