1/4 SAE exhaust valve, refrigeration and air conditioning charging adapter, for R22 R12 R134

Features: 1. PURPOSE: To vent excess air inside the refrigerant meter tube. By squeezing, the excess air in the tube is expelled to achieve a better vacuum and bleed effect. 2. EASY TO INSTALL: Suitable for 1/4SAE interface tools, good sealing performance, widely used for R22, R12, R134, and other air conditioning manifolds. 3. SAFE AND RELIABLE: Refrigerant charging valve, carefully manufactured, safe and reliable, suitable for refrigerant filling and charging. 4. BRASS MATERIAL: The vent valve is made of high-quality brass, which offers high strength, durability, wear resistance, and long-term use. 5. EASY TO INSTALL: Simple installation; just attach it to the end of the charging pipe to minimize refrigerant loss during maintenance. Specifications: Item Type: Refrigerant Charging Valve; Material: Brass; Weight: Approx. 55g / 1.9oz; Applicable Model: 1/4SAE interface, for R22, R12, R134; Package List: 1 x Refrigerant Charging Valve