Rotor Seal, 6 port, Rear Back Catalog number: CTS-21164 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request CTS-A11376 Mixer Assembly, 100μL Price on request CTS-10772 Pump Seals, Low Pressure Price on request