MODEL "1000HP-1+8" DIFF PRESS REG,DBL DIAPH,GRAPHITE/NBR GASKETS 3/4" SIZE,GASEOUS JET; WCC BODY,WCB SPRING CHAMBER WITH CLOSING CAP; S2 TRIM: METAL SEAT,316SST CYLINDER,416SST PLUG,302SST DIAPHRAGM; NPT SCREWED; 10-40 PSID RANGE SPRING; PER SPQ NUMBER 51878 W/ FLEXICARB NR GASKETS & KALREZ O-RING; INLET RATING: 740 CWP 740/500F; OUTLET: 400 CWP 400/500F;