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Autoclavable
Lab Funnels

Lab Funnels

Guide liquids, powders, and solids into containers, filter liquids, or separate materials with different densities using these funnels.

Short-Stem Funnels

The short stem on these funnels minimizes chance of clogging when transferring powders and solids.

Long-Stem Funnels

Efficiently transfer liquid into containers with narrow openings using these long-stemmed funnels.

Polypropylene

Glass

Stainless Steel Funnels

Liquid flows smoothly through these durable, corrosion-resistant stainless steel funnels, which have vented stems to prevent air lock.

Fast-Flow Funnels

Also known as Urbanti funnels, these funnels have internal spiral ribs that speed up non-vacuum filtration processes. Vertical ribs on the outer surface of the stem prevent air lock, allowing liquids to flow smoothly through the funnel.

Vacuum Filtering Funnels

Straight-sided filtering funnels, also known as Buchner funnels, are ideal for separating particles from liquids in fast-flow, pressure-assisted filtering applications. Place a filter paper on the funnel's perforated plate and create a vacuum in the flask below the funnel to pull the liquid through the filter.

Anti-Splash Funnels

An anti-splash ring keeps liquids from spilling over the funnel's rim as they're poured into the funnel. An attached mesh screen filters particles.

Covered Funnels for Hazardous Waste

Close the cover on these funnels to minimize spilling if the funnel is tipped and to prevent potentially dangerous fumes from escaping out of the funnel. Commonly known as safety waste funnels, these funnels can be left attached to a waste container when collecting lab waste or hazardous materials in the container.

Sediment Settling Cones

Measure quantities of sand and settled matter in water, sewage, and other liquids using these cones, which are also known as Imhoff cones. After the liquid has rested in the cone, the heavier material will settle at the bottom. Graduated markings on the side of the cone let you measure the settled contents quickly.

Separatory Funnels

Pear-shaped separatory funnels (also called separation funnels) are used to divide a liquid mixture in a process known as liquid-liquid extraction. The liquids eventually settle into two layers, with the denser liquid on the bottom. Open the stopcock valve at the bottom of the funnel to allow the denser liquid to flow out, separating the liquids.