50-Pack Assorted 1-Hole Rubber Stoppers, Acid and Alkali Resistant Subcategory_Test Strips the parallel-SKU twin of PHVSDSE

the parallel-SKU twin of PHVSDSE for spectrometer and wave-duality investigations

Half-size digestive system model fits smaller class benches while preserving the full esophagus-to-rectum path and accessory organ anatomy in two removable parts

Thirteen-place hardwood test tube rack combining seven 19-mm holes and six 25-mm holes with six draining pins for mixed-size tube storage in student laboratories

Sloping recovery bend in borosilicate glass features 24/29 cone sizes for both flask and cone connections in distillation collection

50-Pack Assorted 1-Hole Rubber Stoppers, Acid and Alkali Resistant Subcategory_Test Strips the parallel-SKU twin of PHVSDSEPack of 50 assorted one hole rubber stoppers with 5mm hole provides acid and alkali resistance for laboratory vessel sealing with tubing pass through.