Review on Aupoko R134A Self-Sealing Can Tap with R134A Tank Adapter and Valve Core Remover for Air Conditioner Manifold - 1/4’’ SAE Valve Refrigerant Dispenser with 1/4’’ Female and 1/2’’ Male Adapter by John Galbraith

Worked great topping up my refrigerant with new self sealing canisters and my cargo port gauge, the only thing that left the yellow line didn't fit, for some reason the port freight makes high and low side lines on the 1/4 set and a 1/2 yellow line, but it's easy to detach with the adapter provided, it wasn't flimsy, didn't leak and has works great. You can't beat this price, and with the addition of a valve core tool, it's a steal! My air conditioner is now arctic cold.