Blue Epoxy Wire Test Tube Rack, 80-Hole (8 x 10), for 22-25mm Tubes Lab Supplies_Sieves 3 glass provides sterilizable vessels

3 glass provides sterilizable vessels for biology

this metal wave helix demonstrates pulse propagation

Polystyrene electrolyzer with a transparent cone-shaped cup over a banana-socket base

drawing both DC and AC simultaneously with short-circuit protection via a 0

Stand-mounted lift pump illustrating how atmospheric pressure lifts water through a valve-and-piston mechanism

Blue Epoxy Wire Test Tube Rack, 80-Hole (8 x 10), for 22-25mm Tubes Lab Supplies_Sieves 3 glass provides sterilizable vesselsEpoxy coated steel wire test tube rack with 80 holes in an 8 by 10 layout, sized for 22 to 25 mm tubes in high throughput biology and chemistry classrooms.