Seal, Wash Back Catalog number: 11-1603 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2525 1/4" Short Comp. Screw (Gold-Plated), 10/pk Price on request CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request CTS-2294-04 Plunger Seals, 4/pk Price on request