Tubing: SolvaFlex, Two Stop, FLARED END 0.64mm (0.0250") Tubing Orange / White, Stop Gap 140mm (5.5"), Overall Length 455mm (18"), 12 per pack
Thermo P/N: 842312051621
Other Part P/N: PT-2120SV-F
TSP packaging consists of 12 tubes per pack whereas other suppliers may only have 6 tubes per pack.