A/C Retrofit Valve Kit-Refrigerant Retrofit Valve Set with R12 to R134A Low Side
R12 to R134A Retrofit Conversion Adapter: The ac retrofit valve with blue dust cap with 7/16″ low side port can convert from R12, R22, R502 to R134a. And the bullet piercing tap valve can replace the part model of AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31.