Pump Seal, Gold Back Catalog number: CTS-10547 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request CTS-10475 Sapphire Plunger Kit Price on request