With a working pressure from 1000 PSI / 1500 PSI, materials of T351 Anodised Aluminium Body / Brass / Stainless steel. Temperature ratings -29 C to 116 C, Ports 1/4″ to 3″ NPT , 10:1 Safety factor. Flow Rate from 0.5 scfm – 2200 scfm / 0.01 – 1130 l/sec.