Features 1、Wide Application Range: This double ended gauge valve has a wide application range and can be used for four types of refrigerants, R22, R12, R404 and R134, with good versatility. 2、Double Head Design: This meter valve adopts double head design, which is easy to use in different environments and improve working efficiency. 3、Vibration Proof Strap Design: This meter valve adopts a vibration proof strap design to reduce inaccurate measurements caused by vibration and improve operational stability. 4、Explosion Proof Hose: This meter valve comes with a 90cm hose with a 1/4 inch connector that supports up to 500 PSI working pressure, ensuring safe use and avoiding accidental injuries due to leakage. 5、Excellent Copper And PVC Material: This meter valve is made of excellent copper and PVC material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. Specification Item Type: AC Diagnostic Manifold Gauge Material: Copper, PVC Use: Shockproof with vacuum pressure gauge explosion proof hose, the gauge can use R22, R12, R404, R134 four kinds of refrigerants Package List 1 x AC Diagnostic Manifold Gauge 3 x Hose 1 x Other Accessory