Filter support collars are ideal for supporting glass funnels, crucibles, Büchner funnels, and other filtration devices. The rubber collar forms a gas-tight seal during vacuum filtration. Rubber Tapered Filter Adapter Complete Set of 8 different sizes. Size 1-8 as listed as height, top inner…

These borosilicate glass Separatory Funnels have a PTFE stopcock and come with a ground glass stopper. They are commonly used in liquid-based extractions to separate the parts of the mixture. We offer various sizes. PRODUCT WARNINGS WARNING: This product can expose you to chemicals…

These Separatory Funnels are made from quality borosilicate glass, and come with a glass stopcock. They are commonly used in liquid-based extractions to separate the parts of the mixture into two solvent phases of different densities. PRODUCT WARNINGS WARNING: This product can expose…

These borosilicate glass Sintered Funnels have a porous filtering plate. They come in three sizes and two levels of porosity . PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects,…

These funnels are made from borosilicate glass and have a short stem. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

The polypropylene Buchner funnels are two-piece, light-weight, and easy-to-clean. They are fully autoclavable. The top portion snaps to the bottom forming a vacuum tight seal. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for…

Our Utility Funnels are made from tough, chemically-resistant polypropylene. They have a 60º cone angle and ribs to prevent air-lock. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

This funnel is intended to fill burettes. It is made from borosilicate glass, and has a 40mm funnel diameter, a 38mm stem, and 10mm stem diameter. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

Our Powder Funnel is made of borosilicate glass and has a 100mm diameter. Powder funnels are great for solid substances due to their short, wide stem. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

A high quality laboratory grade porcelain, made with uniform wall thickness and dense materials which provides stable mechanical strength and little permeability. When properly used, the glazed pieces can withstand temperatures of 1050 degrees centigrade and the unglazed pieces can withstand…