Compatibility: Refrigerant ball valve is fit for R410A, R134A, R12, R22, R502, AC, HVAC refrigeration charging hoses. Product Information: Air conditioning ball valve with 1/4 inch SAE male and female fitting, high working pressure and strength. Features: Quick and easy connection and disconnection with high flow. Ductility at high temperatures, and low magnetic permeability. Performance: The couplers nuts are designed with non slip knurled for quick finger tightening, and it is a necessary tool for car air conditioning maintenance. Characteristics: Brass alloy material, strong sealing for durability and safety, durable and long term use, compact structure and high accuracy. Feature: 1. Compatibility: Refrigerant ball valve is fit for R410A, R134A, R12, R22, R502, AC, HVAC refrigeration charging hoses. 2. Product Information: Air conditioning ball valve with 1/4 inch SAE male and female fitting, high working pressure and strength. 3. Features: Quick and easy connection and disconnection with high flow. Ductility at high temperatures, and low magnetic permeability. 4. Performance: The couplers nuts are designed with non slip knurled for quick finger tightening, and it is a necessary tool for car air conditioning maintenance. 5. Characteristics: Brass alloy material, strong sealing for durability and safety, durable and long term use, compact structure and high accuracy. Specification: Item Type: Refrigerant Ball Valve Material: Brass alloy Connector: 1/4 inch SAE male female connector Application: Fit for R410A, R134A, R12, R22, R502, AC, HVAC refrigeration charging hoses Color: As Shown Package Contents: 3 x Refrigerant Ball Valve 3 x Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.