Rotor Seal Back Catalog number: CTS-21302 Availability: In the manufacturer's stock Price on request - + Recommended 1980-1105 AdvanceBio Spin columns, <1000uL, 50/pk 16 332,32 Kč G1313-87202 Needle, 900ul, 1100/1200 5 472,75 Kč CTS-21690 Rinse Port Cap (w/hole), 10/pk Price on request