Needle Guide Back Catalog number: 11-2591 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10547 Pump Seal, Gold Price on request CTS-10285 TFE 3-Way Valve 4 (V4) Price on request PL7050600 MarvelXACT PLS 50µm x 600mm Price on request