Good quality and inexpensive Secchi Disk for water clarity measurements. Constructed of robust white plastic disk with permanent screen printed black sectors. Includes attached sinker and rot-proof polymer line on a polymer foam bobbin. Line length is approximately 72 feet.

Economical Bowls are constructed from 204Cu Stainless Steel for corrosion resistance at a lower cost.  Bowls features a polished mirror surface foreasy mixing and cleaning.  Can withstand temperatrues up to 1400°F (760°C). Meets NSF standards.

Capture water samples from specific depths with this clever tool. The unit is made from impact-resistant PVC, with soft rubber seals that hold up to 1.5 liters of liquid. A unique design allows for hassle-free sample collection: when the desired depth is reached, students simply jerk the attached…

Unbreakable plastic set of five metric measuring spoons. Includes the following: 1.25ml (1/4 tsp), 2.5ml (1/2 tsp), 5ml (1 tsp), 7.5ml (1/2 tb sp) and 15ml (1 tb sp).