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Gaggle of Gaskets
Black neoprene gaskets in a variety of sizes and shapes: loops, hoops and flat. Stretchy, a little dusty, but in good condition. The Small Round assortment gets you (2) gaskets, between 1/2" and 3/4" dia cross-section, in loops with overall diameters between 1 and 3 feet. The Large Round assortment is one gasket, 5/8" to 1" dia, in a 4 to 9 foot dia loop. The Flat assortment is pieces that make loops of 2 to 5 feet dia. The rubber is about 2" x 1-1/2", but the shape varies: could be square, grooved, V-shaped, or something else. Use as is for really big valves, or better yet, chop it down to size. A great way to get cheap rubber materials for your non-critical applications We'll pick the exact dimensions and, in the case of the Flat assortment, the shape you get.
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29229 FLAT GASKET | |
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29226 ROUND GASKET, LG | |
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29232 ROUND GASKET, SM |
Nature Abhors A Vacuum
But science teachers can't work without them. Experiment with this good-quality manual vacuum pump made of durable polychloroethylene plastic. Works with a pistol-grip action and pulls up to 2" Hg. Includes a 17" length of clear vinyl, 1/4" ID tubing, and a release valve.
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93305 VACUUM HOME PUMP |
Filtering Flask
From Bomex, this glass filtering flask is 500ml, stands 7" tall x 4-3/16" dia at the base, with a 1-7/16" dia mouth. The flask takes a #8 stopper and a 9mm OD outlet nipple.
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92847 FILTERING FLASK |
Moving Air?
It's so much easier electrically. Get this small vacuum pump rated at 130 VDC 300mA. Comes in (2) parts. You'll need to add (4) small bolts to attach them together. Unit measures 5-1/2" x 3-3/4" x 2-1/4" OA, with 1/4" inlet and outlet hosebarb ports flanking the housing. Rated for intermittent duty it was originally designed for a vacuum-sealing food machine and will pull 25" Hg max.
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39236 VACUUM PUMP |
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