PRACTICAL SET:The retrofit valve include R12 to R134A retrofit conversion adapter with dust cap,BPV31 bullet piercing tap valve, a hex key, 2 adapters
HIGH QUALITY:The retrofit valve is made of zinc alloy and the R134 Piercing Tap Valve is made of high quality brass alloy for durable and long-lasting to use
FUNCTION:Universal retrofit valve with 7/16" low side port, automotive air conditioning refrigerant systems converting from R12, R22, R502 to R-134A. BPV-31 bullet piercing tap valve fits for 1/4", 5/16", 3/8" outside diameter pipes. Replace part No. AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31
EASY TO USE:Bullet piercing tap valve: just screw it on then it's okay; BPV-31 bullet piercing tap valve: you only need 1 hex key wrench (included) to install this part
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