Product Information Material: Aluminum Female Thread: NPT Set Pressure Tolerance: +1/0 PSI Select a Product Part NumberComponent MaterialFemale Thread SizePressure Setting A2180/17ADJWhite Food Grade Silicone Diaphragm2"17 PSI A2180/14ADJWhite Food Grade Silicone Diaphragm2"14 PSI A2180/19ADJWhite Food Grade Silicone Diaphragm2"19 PSI A2180/20ADJWhite Food Grade Silicone Diaphragm2"20 PSI A3180/21ADJRed Silicone Diaphragm3"21 PSI A3180/9ADJRed Silicone Diaphragm3"9 PSI A2180/13ADJWhite Food Grade Silicone Diaphragm2"13 PSI A3180/15ADJRed Silicone Diaphragm3"15 PSI A2180/11ADJWhite Food Grade Silicone Diaphragm2"11 PSI A3180/17ADJRed Silicone Diaphragm3"17 PSI A2180/9ADJWhite Food Grade Silicone Diaphragm2"9 PSI A2180/23ADJWhite Food Grade Silicone Diaphragm2"23 PSI A3180/25ADJRed Silicone Diaphragm3"25 PSI A2180/10ADJWhite Food Grade Silicone Diaphragm2"10 PSI A2180/21ADJWhite Food Grade Silicone Diaphragm2"21 PSI A3180/16ADJRed Silicone Diaphragm3"16 PSI A2180/12ADJWhite Food Grade Silicone Diaphragm2"12 PSI A3180/10ADJRed Silicone Diaphragm3"10 PSI A3180/19ADJRed Silicone Diaphragm3"19 PSI A2180/22ADJWhite Food Grade Silicone Diaphragm2"22 PSI A3180/12ADJRed Silicone Diaphragm3"12 PSI A2180/25ADJWhite Food Grade Silicone Diaphragm2"25 PSI A2180/24ADJWhite Food Grade Silicone Diaphragm2"24 PSI A3180/20ADJRed Silicone Diaphragm3"20 PSI A2180/18ADJWhite Food Grade Silicone Diaphragm2"18 PSI A3180/14ADJRed Silicone Diaphragm3"14 PSI A2180/15ADJWhite Food Grade Silicone Diaphragm2"15 PSI A3180/18ADJRed Silicone Diaphragm3"18 PSI A3180/13ADJRed Silicone Diaphragm3"13 PSI A3180/23ADJRed Silicone Diaphragm3"23 PSI A3180/11ADJRed Silicone Diaphragm3"11 PSI A3180/22ADJRed Silicone Diaphragm3"22 PSI A2180/16ADJWhite Food Grade Silicone Diaphragm2"16 PSI