Plunger Seal Back Catalog number: CTS-21347 Availability: In the manufacturer's stock Price on request - + Recommended CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request CTS-10770 Waste Valve, V3 (2 Way Solenoid Valve) Price on request CTS-A117 Inlet Check Valve Price on request