Cylindrical Dropping Funnel with PTFE Stopcock and 29/32 Plastic Stopper, 500mL, Ungraduated, Borosilicate Glass Glass Flasks_Volumetric Flasks -Class B Supplies air-pressure changes to the

Supplies air-pressure changes to the PH0150A Boyle's Law apparatus through a foot-operated pump

Hand-crafted hardwood test tube rack with six 25 mm holes and six drying pins on a single tier

and acetate strips for hollow-conductor work

Wooden handle supports a 12-inch bristle cleaning brush for scrubbing general glassware

sized for low-resistance Ohm's-law work where high-resistance components don't draw measurable current

Cylindrical Dropping Funnel with PTFE Stopcock and 29/32 Plastic Stopper, 500mL, Ungraduated, Borosilicate Glass Glass Flasks_Volumetric Flasks -Class B Supplies air-pressure changes to theCylindrical dropping funnel in borosilicate glass holds 500mL with PTFE stopcock and 29 32 plastic stopper for controlled liquid addition.