"United Scientific Supplies"

Pre-cleaned borosilicate glass test tubes without rims.

Economical plastic test tubes.

Round-bottom polypropylene test tubes.

These centrifuge tubes are ideal for environmental uses such as water analysis and other applications wherein tubes have the potential to contaminate samples.

Pre-cleaned borosilicate glass test tubes with rims. Tubes can be used for hot or cold applications, are reusable, and can be autoclaved.

This polypropylene tubes include blue HDPE leak-proof screw caps. The tubes and caps feature specially-designed flat threads for vacuum-type closure that is leak-free at a pressure of >700 mm Hg.

Leak free centrifuge tubes with conical bottoms.

Sterile conical bottom centrifuge tubes.

Sterilized self standing centrifuge tubes.

Pack of 50 racked polypropylene centrifuge tubes with conical bottom. Leak-proof, blue HDPE screw caps are included.

Sterilized self standing centrifuge tubes.

Disposable borosilicate glass culture tube with screw cap finish.

Graduated borosilicate tube for measuring gas.

High-quality microcentrifuge tubes for safer use in molecular biology and other biochemical applications.

Internal thread provides the optimal sealing for storage at ultralow temperatures.

Sterilized polystyrene transport tubes with polyethylene screw cap.