Straight and manual shut-off valves with 1/4 inch male and female SAE fittings. This coupler nut features a deeply barreled design for quick finger tightening. Ball valve design with a quarter-turn handle for reliable on/off control. Compact ball valve allows one-handed operation—screw directly into the charging hose end. Easy to install. A/C straight-open ball valve adapter compatible with R134a, R22, R12, R410a, and 1/4 inch HVAC and HVAC/R systems. Ideal for automotive air conditioning, mini-separators, capacitors, residential HVAC charging, and recovery applications. Constructed from high-quality brass alloy for durability and corrosion resistance. Meets SAE, EPA, and UL standards for refrigerant handling. Maximum working pressure: 800 psi (55 bar). Minimum burst pressure: 4000 psi (276 bar). Specifications: Type: Straight adapter with ball valve; Thread: 1/4 inch male/female SAE; Color: Gold; Material: Brass. Package Contents: 1 x Red straight ball valve, 1 x Blue straight ball valve, 1 x Yellow straight ball valve. Note: The package includes only the items listed above. Other accessories are not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.