"agarose powder"

The E.H.T circuits on this digital power supply are fully floating, enabling the positive and negative terminals to be grounded for certain applications.

Comprehensive Overview in Text and Imagery

Perfect for Your Meter Stick Optics Bench.

A Great Classroom Solution.

Explore Force, Acceleration and Hooke's Law. No tools required.

Feature easy-to-understand facts supported by bold, colorful graphics.

Convenient single or double battery holders for standard AA and D cell batteries.

How do you remove settled wastes from the gravel in your aquarium? Use these powerful undergravel filters to keep your aquarium water sparkling clean.

Double the Voltage

Compact battery holders with wire leads.