1/2" SIZE MODEL 1088-BP SPRING OPERATED BACK PRESSURE REGULATOR HORIZONTAL OUTLET POSITION, INTERNAL SENSING; 316 SST BODY AND TRIM WITH CARBON STEEL UPPER DIAPHRAGM CASE; ALL WETTED PARTS ARE SST; NO GAUGES; THREADED (FNPT) CONNECTIONS; 100% FLOW PLUG ONE; BUNA-N SOFT SEATS & SEALS; 1 - 1.5 PSIG RANGE SPRING; NO EXTERNAL FILTER;