NON-RETURN-VALVE, O 12-13-15mm Back Catalog number: 419 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A019 Manual Injection Valve Rotor Seal, Vespel® Price on request 1002734380 1/4 " Flow Check Valve for Aq37X Price on request MXP7900-000 MX series II Two-position, six-port valve, DL Price on request