Rectangular Retort Base and 39.5" Rod Set, 12.5 x 8", 12mm Rod Activity Kits_Physics Conical filtering flask in borosilicate

Conical filtering flask in borosilicate glass holds 500mL with integral side arm for vacuum filtration and chemistry separation procedures

sized for 22 to 25 mm tubes in high-throughput biology and chemistry classrooms

Wall-mounted Mason's hygrometer with two identical dual-scale thermometers — one dry and one kept wet via a water reservoir — calculating relative humidity from their paired reading difference

Oversized four-part ear model separates external canal

Rectangular Retort Base and 39.5" Rod Set, 12.5 x 8", 12mm Rod Activity Kits_Physics Conical filtering flask in borosilicateTwin hole retort base in 12. 5 by 8 inch powder coated steel paired with a 39. 5 inch stainless steel rod, supporting tall clamp and ring configurations for extended glassware trains.