Sapphire Plunger Back Catalog number: CTS-11434 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21163 Rotor Seal, 2-Groove Price on request CTS-A11151 Needle Assembly, PEEK™ Price on request CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request