Straight Cone to Flexible Tubing Rotaflow Stopcock Adapter, 29/32 Cone, Borosilicate Glass Base Shape_Rectangular spectral-line

spectral-line

Hexagonal hollow stopper in borosilicate glass features 19/26 cone with flat end for sealing ground joint vessels and chemistry apparatus

Glass double-concave lens at 50mm diameter and 100mm focal length

230mm disc graduated 0-360 degrees in 1-degree steps locks in any position alongside a rotatable lamp house and six magnetic acrylic elements for full ray-tracing studies of reflection and refraction

providing tiered storage that keeps tubes upright and visible during student experiments

Straight Cone to Flexible Tubing Rotaflow Stopcock Adapter, 29/32 Cone, Borosilicate Glass Base Shape_Rectangular spectral-lineStraight cone to flexible tubing Rotaflow stopcock in borosilicate glass provides controlled flow between ground joint apparatus and rubber tubing.