Black Plunger Seal Back Catalog number: CTS-6613 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request CTS-A145 Inlet Check Valve Price on request CTS-10566 Alliance Head Plunger Seal Kit, 2/pk Price on request