Needle Guide Back Catalog number: 11-2591 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request CTS-11119-02 Head Plunger Seal, 2/pk Price on request CTS-21240 ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Price on request