Boltigen Refrigerant Piercing Retrofit Conditioning Review

【R134A REFRIGERANT RECHARGE HOSE GAUGE KIT】Our r134a freon refill kit includes:1pcs R134a refrigerant charge hose with gauge and piercing can tap,1pcs BPV-31 bullet piercing tap valve(each bullet piercing tap valve kit contains 1 piercing valve, 1 hex key),1pcs universal a/c retrofit valve convenient for you to use. And our r134a refrigerant replacement kits are made of corrosion-resistant metal that won't wear out or rust over time, with anti-leaking design. 【BPV-31 BULLET PIERCING TAP VALVE】Our bpv31 piercing valve is compatible with 1/4inch, 5/16inch, 3/8inch outside diameter pipes. Our bullet piercing tap valve can replace the part model of AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. 【R134A REFRIGERANT RECHARGE HOSE with GAUGE】The length of our r134a charging hose with gauge and piercing can tap is:19 inch hose (with gauge , r134a piercing can tap,R134a service port). The end of r134a piercing can tap port can directly connect 1/2 ACME Male refrigerant piercing cans/containers and the end of R134a service port fits R12, 22, 502 fittings. And the gauge has scale readings for R134. 90-degree push and lock coupler with auto shut off. 【A/C RETROFIT VALVE】Our universal a/c retrofit valve converts from R-12 to R-134a air conditioning system and suit for 7/16 inch low side port; Suit for vehicles pre-1994, comes with R-134a refill fittings. 【EASY to INSTALL】Our BPV-31 bullet piercing tap valve kits come in compact design that only requires a 2-inch clearance area for installation and use, and you only need 1 hex key wrench (included) to install the kit; If you want to attach the gauge with bullet piercing tap valve, you need a retrofit valve (included).