Plunger Seal, Black Back Catalog number: CTS-20612 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-12013 Tungsten Lamp (1000 hr) Price on request CTS-21421 PM Kit, 1290 Binary Pump Price on request CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request