Plain borosilicate glass, short stem configuration.
3.45$ – 4.60$
This Economy Funnel (made of glass) fits in various sizes of scientific glassware, and it’s often used in the industry in conjunction with filter paper or a small cotton ball to filter solutions. This funnel is offered with varying internal diameters.
| Size | 120mm ID, 40mm ID, 50mm ID, 75mm ID, 90mm ID |
|---|
There are many situations in which having pre-drilled holes can be useful. For example, let’s say you need to hold a thermometer precisely in the center of your container while still maintaining an air-tight seal. Having a pre-drilled hole in the center will ensure proper, consistent alignment. Buchner Funnels (for filtering) can also benefit from this type of stopper. If the holes are too small, they can easily be drilled bigger, allowing them to fit your own, custom applications.
Not sure if you need holes in your stopper? No worries! You can always just use a cork borer to drill new ones at any time to suit your specific needs. Rubber stoppers are the most commonly used stoppers in lab applications, and they are highly recommended for every lab to have.
Be advised that improperly done holes can also cause liquid chemical leaks from your containers if you’re not careful, so make sure that all your fittings – including the rubber bung itself – are snug within the container.
Always use the right size rubber stopper for your application – when in doubt, don’t try to force it!
Safe Leaf Extract Solutions
340 Windmill Road
Dartmouth, Nova Scotia
B3A 1J1 Canada
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902 999 1671
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