"tube+coolers"

Total length: 18 cm; bristle section length: 7.6 cm; tapered dia: from 1.3 cm to 5 mm.

Soft tubing for patient comfort.

This unbreakable plastic thistle tube is ideal for the high school laboratory. It has a two piece construction with the stem tightly fitting into the funnel. Stem O.D.: 6mm. Length: 290mm. Package of 12.

Students measure pressure with a precision manometer.

Hand crank centrifuge with a capacity of 4 tubes (up to 15 ml), includes tubes for immediate use.

Estimate stream quality as it relates to solids in the water.

Ideal for measuring turbidity in streams where a Secchi disk can't be used.

Hand crank centrifuge capable of holding 4×15 ml tubes, includes tubes for immediate use.

Single bore burettes with detachable rubber tube and pinch clip.

Fits standard size pumps and accessories.

To Accompany Your Tuning Fork!

Plankton net are made of cone-shaped nets with nylon cloth to collect plankton in a removable, clear conical graduated tube attached at the end of the net.

In this lab activity, students precipitate their own DNA from solution and examine its appearance.

Demonstration tool for fluid dynamics and the Bernoulli effect of water flow.

The TubeRocker Mini is designed to provide the ideal speed and tilt angle (24 rpm and 30°) for agitation of sample tubes. The grooved design of the included rubber mat properly secures all tube sizes ranging from 1.5 to 50 ml, without the use of added straps or bands.

Ice-free, stable cooling for sample tubes.