Analizer Imperial 396-CKP Brass Manifold 3' Hoses R-12/ 22/ 502 Soft Seat Valve – Brass stem with long wearing soft tip seats tightly, with fingertip pressure. Fluted Grip Control – Durable handwheel is non-slip even with oily fingers. Premium Hose – 600 PSI working pressure/ 3, 000 PSI burst pressure. Fluted Grips Dual O-Ring Seal Valves Swivel Hanger