Piston Seal Wash Seal/Priming Valve Seal Back Catalog number: 11-2587 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4048 PEEK™ Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-11092 O-Ring, PTFE Price on request CTS-A102 Inlet Check Valve Price on request