Filtering flask, 4 sizes, heavy gauge glass for safe vacuum filtration.
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Superior quality neutral filter paper, 100 circles packed in a cardboard box. Suitable for medium filtration, very low ash content. Equivalent grade is Whatman #1, filters to 11 microns for general laboratory filtration.
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Filtering flasks available in 4 sizes
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Cheap, simple and no moving parts! The aspirator works by means of the Venturi effect, using moving fluid to generate a vacuum. Water is directed through the top of the aspirator and discharged through the bottom tube. The vacuum line is on the side.
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A Multi-Purpose Vacuum Pump, great for classroom, laboratory or shop use. This hand pump has a quick vacuum release trigger and may also be used as a siphon pump by removing the outlet cap and attaching 1/4" tubing. -
A Multi-Purpose Vacuum Pump, great for classroom, laboratory or shop use, in addition to automotive applications like brake bleeding and liquid siphoning. Comes in a hard plastic case with instructions, tubing, a reservoir jar and various automotive attachments. -
Solid silicon rubber stoppers are cleanly drilled with a 19mm diameter hole to fit most standard Buchner funnles. No flaking or lose particles to contaminate your product. Available in 2 sizes:
- #8 will fit most 500ml flasks
- #10 will fit most 1000ml flasks
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Fritted glass is used for applications where normal filter paper would be destroyed by the solution to be filtered. This funnel has a medium porosity of 10 - 15 microns and is used for general laboratory filtration. Made of borosilicate glass and packed in a foam lined box for safe shipping and storage.
