This set of couplers offer you the best convenience to attach the manifold hoses onto the Auto/Car AC R134A system during the diagnosis, charging or evacuation working.

Blue: Low side quick connector/adapter (1/4"SAE male flare)
Red: High side quick connector/adapter (1/4"SAE male flare)

Extended cut protection sleeve provides safety protection, prevents injuries and refrigerant loss, preventing leakage, sturdy construction ensures durability and long term use
Sturdy low-loss refrigerant manual coupler is made of easy to install brass material and passed rigorous inspection to ensure high quality and premium performance