Introduction to the 27mm Test Tube Rack

This is a 4-hole, 27mm plastic test tube rack designed to securely hold test tubes (or colorimetric tubes and centrifuge tubes) with a nominal diameter of approximately 27mm.

Key Features

Material: Made from ABS filament; not suitable for high-temperature, high-pressure sterilization; lightweight and shatter-resistant.

Structure: Dual-layer stepped design—upper layer features test tube slots with a 27mm aperture, while the lower layer serves as a supporting tray that stably cradles the base of the test tube to prevent tipping.

Specifications: Four-slot layout, with each slot accommodating test tubes up to 27mm in diameter; commonly used with 15ml, 20ml, and 50ml test tubes.

Advantages: Compact design that minimizes space occupancy, easy to carry and store, making it ideal for student experiments, small-scale testing, or temporary sample storage.

Applicable Scenarios

Hydroponic seedling cultivation and stem cuttings, flower arranging

Home science experiments and DIY crafts

Precautions

Avoid contact with strong organic solvents (such as acetone and toluene) to prevent material aging and deformation.

Only suitable for test tubes with a diameter of around 27mm; if the aperture is too large or too small, stability will be compromised.