Best Seller | DAYTON 4PDK1 Gauge,2-3/4 In Dia,High Side,Red,500 psi Replacement High Side Pressure Gauge, Diameter 2 3/4 in, Working Pressure 0 to 500 psi, Connection Size 1/8 in (M)NPT, Color Red, For Use With R-12, R-22, R-502, Application Replacement Manifold Gauge for Manifold Gauge Sets ... more DAYTON 4PDK1 Gauge,2-3/4 In Dia,High Side,Red,500 psi Replacement High Side Pressure Gauge, Diameter 2 3/4 in, Working Pressure 0 to 500 psi, Connection Size 1/8 in (M)NPT, Color Red, For Use With R-12, R-22, R-502, Application Replacement Manifold Gauge for Manifold Gauge Sets | | $9.89 go to store |