MODEL "HP-1+6+S" DIFF. PRESS REDUCING REGULATOR,NON-NACE SERVICE 3/4" SIZE; WCB BODY & SPRING CHAMBER; S40T TRIM: 316SST CYLINDER,316SST PLUG WITH TFE SEAT,FLUOROCARBON ELASTOMER DIAPHRAGM; SAE THREADED CONNECTION; 15-40 PSID RANGE SPRING; PER SPQ/MA DRAWING NUMBER 32911 REF. SPQ/MA DRAWING;