CARBO Instruments Stainless Steel Pressure Gauge Dual Display (15000 psi kPa) 2 1 2" Glycerine Liquid Filled Water Air Oil Gas Gauge with Polycarbonate Lens & Brass Connection 1 4" NPT Lower Mount 0 15000psi industrial Loud and clear sound surprise B0DK1NFLD9 Loud and clear sound surprise you 937MM) Inner Diameter: 5MM Max Working Pressure: 120 PSI Bursting Pressure: 360 PSI Working Temperature: 4℉ 149℉ Read more Package Includes 1× PU Tubing 2× Tees 2× Unions 2× Splitters 2× Elbows 2× 1 4" Male Connectors 2× 1 8" Male Connectors Read more Air Tubing Kit Air Tubing Kit Air Tubing Kit OD 1 4” (6 It is especially useful to monitor the pressure in swimming pools & any other water systems Dual scale: Our mechanical pressure gauge provides readings in both psi & bar for added versatility