Plunger Seal Back Catalog number: CTS-21347 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request CTS-0037 Tube, Left Inlet Pigtail Price on request CTS-10600 Check Valve Cartridge, 2/pk Price on request