Model "HP-1+6+S" Diff. Press Reducing Regulator For Nace Service; 1" Size; Sales Kit A; Cf8m Body & Spring Chamber; S40t Trim: 316SST Cylinder,316SST Plug With Tfe Seat,Fluorocarbon;Elastomer Diaphragm; Special Construction Per Following 5-Digit Cashco Dwg No.; Per SPQ/MA Drawing Number 32907 with TFE Diaphragm Covers