Piston Seal Wash Seal/Priming Valve Seal Back Catalog number: 11-2587 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10391 Plunger Wash Seal Price on request 11-2591 Needle Guide Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request