【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.
A/C Retrofit Valve Kit-Refrigerant Set, Silver/Gold--1 pack
20Pcs Hvac Schrader Valve Core for R32 R22 R410A Refrigerant, AC Schrader Valve
3Pcs 5/16 SAE Female to 1/4 SAE Male AC Charging Valve for R410A R32 Systems
For R134a AC System Valve Cover For M8 M10 with Easy Maintenance Features
