/C Retrofit Valve Kit, R12 to R134A Low Side Adapter

【R12 to R134A Retrofit Conversion Adapter】The A/C retrofit valve with blue dust cap and 7/16" low side port converts from R12, R22, R502 to R134a. It can replace part models AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, and MPV31.