Drechsel Gas Washing Bottle with B29 Joint Head, 250mL, Borosilicate Glass Subcategory_Hot Plates and Stirrers Multiple-connection receiver adapter in borosilicate

Multiple-connection receiver adapter in borosilicate glass features 19/26 socket for connecting multiple apparatus components in chemistry setups

Refracting white light into a visible rainbow spectrum

Plastic-cased ticker tape timer at 4

Hand-painted pigeon dissection model with numbered structures reveals avian internal anatomy and flight adaptations for ornithology teaching

Soxhlet extraction apparatus in borosilicate glass features 100mL extractor for analytical extraction of organic compounds from solid samples

Drechsel Gas Washing Bottle with B29 Joint Head, 250mL, Borosilicate Glass Subcategory_Hot Plates and Stirrers Multiple-connection receiver adapter in borosilicateDrechsel gas washing bottle in borosilicate glass holds 250mL with B29 joint head for gas purification, moisture removal, and chemistry procedures.