Replacement Low Side Pressure Gauge, Diameter 4 in, Working Pressure 30 in Hg to 400 psi, Connection Size 1/8 in (M)NPT, Color Blue, Glow-in-the-Dark, Gauge Type Non Liquid Filled, Gauge Accuracy +/-1.00 Percent, For Use With R-134A, R-22, R-404A,...