Critoseal® and Critocaps® are ideal for sealing any type of capillary tube.

Critoseal® is a unique vinyl plastic compound that offers a fast, heatless method for sealing any type of capillary tube. Critoseal® identi-tray holds the Critoseal® and has positions to place the plugged micro hematocrit tubes for specimen identification until they are centrifuged.

Critocaps® tube closures provide fast, convenient capping of capillary tubes. Made of plastic.