Plunger Seal Back Catalog number: CTS-21347 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request CTS-10711 Alliance Head Plunger Seal Kit, Black, 2/pk Price on request PS7025350 MarvelXACT™ PEEKsil™ 25µm ID x 350mm Price on request