... ,350psi,500psi. *Connection:1/8"NPT Refrigeration System Gauges Y70A-L Suited for R12/R22/R502/R134a/R404A ... 68mm) Range: -30inHg~250psi,350psi,500psi. Scale unit:psi,Mpa,kg/cm2,bar Accuracy:±3-2-3% Connection ... : 1/8"NPT Model: 70AL01:psi-kg/cm2,-30inHg~0-250psi,R12/R22/R502 70AL02 ... 70AL10:psi-kg/cm2,-30inHg~0-550psi,R22/R134a/R410a 70AL11:psi-bar,-30inHg~0-550psi,R410A Manifold Gauges ...