Sapphire Plunger Back Catalog number: CTS-11434 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11381 Needle, SS, 30μL Price on request CTS-10532 Seal Wash Face Seal Price on request CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request