Needle Seat Back Catalog number: 11-2570 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10548 Gold Plunger Seal, Analytical Heads Price on request CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request CTS-A11376 Mixer Assembly, 100μL Price on request