3 Pieces Set A/C R134A Refrigerant Charging Hose R134A Charging Hose Quick Couple, 1/2 in Male 1/4 in SAE Female Can Tap Valve, BPV31 Bullet Piercing Tap Valve Compatible with GPV14 GPV31 GPV38 GPV56;

Features:

R134A refrigerant charging hose:
The charging hose comes with pressure gauge for easily viewing during use, pressure gauge scale is 0 - 200 PSI, the 1/2 inch end fits R12, R22, R502 fittings, suitable for R134A refrigerant of vehicle or home air-conditioning. 2019-10-11：
Features:

R134A refrigerant charging hose:
The charging hose comes with pressure gauge for easily viewing during use, pressure gauge scale is 0 - 200 PSI, the 1/2 inch end fits R12, R22, R502 fittings, the R134a can tap is only suitable for R134A refrigerant of
vehicle or home air-conditioning.

BPV31 bullet piercing tap valve:
It can replace part model of AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31, it is compatible with 1/4 inch, 5/16 inch, 3/8 inch outside diameter pipes.

Specifications:
Charging hose:
Size: approx. 59 inch/ 149.8 cm in length
Maximum pressure value: 200 PSI

Bullet piercing tap valve:
Material: metal
Color: silver

Package includes:
1 x R134A refrigerant charging hose 
2 x BPV31 bullet piercing tap valve kit

Warm notice: 
It is not suitable for refrigerant 410a. 
Put on your safety glasses and protective gloves before piercing the pipe. 
This is not original product, the mention of brand names and any related model designation above is only for purposes of demonstrating compatibility, not work as brands.