... . For refrigerant R12, R22,R134a,R502,R407c R134a MANIFOLD GAUGE SET WHOLESLE!Key Features:1.100% virgin PTFE diaphragms2. Full porting ... ,R22,R134a,R407c,R5023.Pressure: -30~350psi 0~500psi 4.Fitting:1/4"-1/4"-1/4" SAE5.Charing Hose: 1 ... /4" 3pcs red&yellow&blue 36"(90cm) R134a Manifold Gauge Set