4-Piece Rectangular Retort Stand Set with Coated 3-Prong Clamp Light & Optics_Color displaying solution acidity on a

displaying solution acidity on a benchtop-grade meter small enough for fieldwork and classroom water quality lessons

Fifteen-volt DC scale on a 315x115mm laminated panel with sealed multiplier

polished with ground edges for image-formation experiments in introductory optics

Hand-crank centrifuge spins four 15mL tubes for teaching sedimentation

4-Piece Rectangular Retort Stand Set with Coated 3-Prong Clamp Light & Optics_Color displaying solution acidity on aFour piece retort stand set with a powder coated 8 by 5 inch pressed steel base, a 23. 6 inch stainless rod, a 3 inch cast iron support ring, and a three pronged coated clamp.