1/4" NPT INTERNAL, 10A @ 125/250 VAC, 3A @ 480 VAC, 90 PSI MAX ADJUSTABLE, ANODIZED ALUMINUM, BUNA-N, ECON-O-TROL, PRESSURE SWITCH; Part Number: E1H-H90; Category: Sensors & Switches; Subcategory: Pressure Switch; Basic Configuration: Housed; Limit Switch: 10A @ 125/250 VAC, 3A @ 480 VAC; Pressure Range: 90 PSI max adjustable; Pressure Connection (Thread): 1/8" NPT Internal - 1/2" NPT External; Pressure Connection (Material): Anodized aluminum; O-Ring/Diaphragm: Buna-N