PM Kit, 1290 Binary Pump Back Catalog number: CTS-21421 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21566 PM Kit, Seal Wash for Binary Pump G4204A Price on request CTS-21085 Rotor Seal, 6 port, -COH Price on request CTS-A11381 Needle, SS, 30μL Price on request