Pascal's Hydraulic Demonstrator with 50mL and 10mL Pistons Category_Plasticware Polypropylene round test tube rack

Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

and raised graduations with full autoclave and dishwasher tolerance

and frequency-response student work

Mounted thermistor on a demonstration base with 4mm plug connections

Pascal's Hydraulic Demonstrator with 50mL and 10mL Pistons Category_Plasticware Polypropylene round test tube rackHydraulic press Pascal's demonstrator on a 7. 5 inch wooden frame pairing a 10mL small syringe piston with a 50mL large piston, showing mechanical advantage through fluid pressure transmission.