4" All Stainless Steel Oil Filled Pressure Gauge - 1/2" NPT Lower Mount 1000PSI

DuraChoice 4" All Stainless Steel Oil Filled Pressure Gauge - 1/2" NPT Lower Mount 1000PSI

SENCTRL 0-30 PSI Glycerin Liquid Filled Low Pressure Gauge, 2.5" Dial Size, 1/4 NPT, Stainless Steel Case, Lower Mount, for Water Oil Air Pressure Test

CARBO Instruments Stainless Steel Pressure Gauge Dual Display (0-100 psi/kPa) - 2 1-2" Glycerine Liquid Filled Water Air Oil Gas Gauge with Polycarbonate Lens & Brass Connection - 1/4" NPT Lower Mount