NON-RETURN-VALVE, O 12-13-15mm Back Catalog number: 419 Availability: In the manufacturer's stock Price on request - + Recommended 3101011220 2-Way Solenoid Valve, 7kgf/cm2 Price on request SSAC6WE Rotor seal 6 port 2-pos W-valve, 1/16*.4mm Price on request CTS-A083 Rotor Seal, Vespel Price on request