This tubing is specially designed to fit the Thermo iCAP Q peripump. The three colored markers denote the size of the inner diameter. The markers also hold the tubing in place, stopping it from slipping while the pump is moving.
We offer both flared and nonflared tubing. Tubing with small inner diameter is difficult to connect to capillaries without damaging the tubing. To prevent damage and extend the life of the tubing, both ends are flared to create a slightly larger mouth for connections.