Vacuum Pump and Bell Jar Set Geology Specimen Collections_Rock & Mineral Collections All-glass water still producing distilled

All-glass water still producing distilled water for laboratory use through a contamination-free path that eliminates metallic leaching from internal surfaces

with a 1/4 inch cross hole 2

Quality wooden 24-inch demonstration vernier caliper with a sliding arm

and organelles with hand-painted detail on a mounted base for biology teaching

Built for parasitology study

Vacuum Pump and Bell Jar Set Geology Specimen Collections_Rock & Mineral Collections All-glass water still producing distilledCombined hand vacuum pump and 25cm acrylic bell jar assembly with matched rubber seal, a ready made platform for Magdeburg hemisphere and vacuum boiling demonstrations.