O-Ring, PTFE Back Catalog number: CTS-11092 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11312 PEEK™ Rotor, HPV Price on request CTS-12013 Tungsten Lamp (1000 hr) Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request