Tungsten Lamp Back Catalog number: 11-3343 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10560 Seal Wash Plunger Seal, Alliance, 2/pk Price on request CTS-2369 Sapphire Plunger Price on request CTS-10493 Check Valve Cartridge, 2/pk Price on request