JB INDUSTRIES M2-820 Gauge,3-1/8 In Dia,Low Side,Blue,500 psi

Replacement Low Side Pressure Gauge, Diameter 3 1/8 in, Working Pressure 30 in Hg to 500 psi, Connection Size 1/8 in (M)NPT, Color Blue, Glow-in-the-Dark, Gauge Type Non Liquid Filled, Gauge Accuracy +/-3-2-3 Percent, For Use With R-22, R-404A, R-410A,...