Trident Australia stocks a variety of brands such as McDaniel Controls, Parker, and Norgren, with a wide range of 1 1/2-inch Utility Gauges with center-back connections.
Norgren pressure gauge, 50mm black plastic case, 1/8 inch BSPT male centre back connection, 0-10 bar / 0-150 psi dual scale (Old part number 18-013-013)
Parker 40 mm pressure gauge 0-10 bar, R1/8 centre back mount
McDaniel Controls R7 Series 1 1/2 inch utility pressure gauges have 1/8 inch NPT connections and ranges from Vacuum to 5,000 psi. These are NOT glycerine fillable.
McDaniel Controls R7 series 1 1/2 inch pressure gauge, 0-15 psi, 1/8 inch NPT male centre back, SS case with brass internals
McDaniel Controls R7 series 1 1/2 inch pressure gauge, 0-30 psi, 1/8 inch NPT male centre back, SS case with brass internals
McDaniel Controls R7 series 1 1/2 inch pressure gauge, 0-100 psi, 1/8 inch NPT male centre back, SS case with brass internals
McDaniel Controls R7 series 1 1/2 inch pressure gauge, 0-160 psi, 1/8 inch NPT male centre back, panel mount, SS case with brass internals
McDaniel Controls R7 series 1 1/2 inch pressure gauge, 0-200 psi, 1/8 inch NPT male centre back, SS case with brass internals