Red: High Side Quick Connector/Adapter (1/4 Male Flare) Blue: Low Side Quick Connector/Adapter (1/4 Male Flare) 6072 R134a Manifold / Hose Adapter Assortment (Each) - Common adapter fitting for hoses on R134a manifold gauge sets. Price $57.01. Add To Cart. Quick View this... Angle to fit different Valve Cores. Ac Quick Connect Fittings Joywayus R134a AC Quick Coupler Adapter Car AC R134a Quick Connectors System Port Adapters Couplers Low High Set Conversion Kit For Hvac Auto Air Conditioning With Manifold Hose Gauge 6d643e9f 3975 458a 996e 60b97d9d770a.d36f5acad7b1cad058f3e4c1a4a74905 Material: Solid Brass Metal Construction Joywayus Low High R134a AC Quick Connectors System Port Adapters Couplers for HVAC Auto Car Air Conditioning with Manifold Hose Gauge,1/4" SAE HVAC Side Fitting for A/C Manifold Gauge Set (R-134A) Type Reliable and safe for valve access to systems even at working pressure.