BEST SELLERS

Here’s a fine pair of nylon bristle brushes, just perfect for cleaning test tubes, aquarium filter tubes or your favorite long-necked soda bottle. The smaller brush is 8-1/2” long with a 1/2" dia. while the larger is 10-1/2” overall with a 1-3/8” dia. The bristle area for both approx. 3-1/2” long.

So we're pricing these borosilicate boiling flasks to move quickly. We've got (3) sizes, all with slightly flattened bottoms, each with a single, discreet, capacity mark in white. While the actual physical size can vary slightly, the volume remains the same. The 1000ml flask is 9-5/8" tall OA x 5-5/8" dia with a 1-5/16" ID mouth, and a lip. Takes a #7 rubber stopper. The 500ml flask is 6-7/8" tall OA x 4-1/8" dia with a 1-3/16" ID mouth, and a lip. Takes a #6-1/2 rubber stopper, but a #7 will work. The 250ml flask is 6-1/8" tall OA x 3-3/8" dia with a 1-1/32" ID mouth, and a lip. Takes a #5-1/2 rubber stopper, but a #6 will do the job.

These translucent plastic booties might remind you of what your grandmother wore in the 1950s if you’re a copywriter of a certain age. If not, then they’re plastic shoe covers with a white rubber sole. Package calls them “drizzle boots,” which is as cute as a grandmother, but it also says size Large, which is generous. Sole measures 11” heel to toe, so you decide, but definitely for your smaller large sizes. Closes over your ankle with a hook-and-loop strap.

That'd fill this 9-oz ceramic coffee mug with the periodic table of elements printed on the side to about half a cup. It's printed in color on both sides, actually, in case you're left-handed. The atomic numbers and weights are a trifle small, but then they are atomic.

A great find: sterile plastic petri dishes, 90mm dia x 15mm deep, with a loose fitting lid. Great for growing cultures for your science fair experiments, as individual pancake storage cases or for mixing paint. Our each is (25) dishes and lids in a sealed, sterile package.

Grow your own bacteria with this lab kit from EduSci. You get (3) sealed sterile Petri dishes plus a 1/8-oz bag of agar and instructions for use. Bonus: they teach you that agar is pronounced like jogger without the j.

Affordable, adaptable lab equipment for serious scientists with laughable budgets. The basic stand is heavy black metal 8" long x 5" wide x 1" high with a 19-1/2" x 3/8" dia support rod screwed into it. Position a beaker or bunsen burner on the stand and build the configuration you need above it. Both the Burette clamp and the ring attach to the rod with thumbscrew clamps. The Burette clamp has a wing nut so it can be adjusted to any angle. The clamp extends 4" from the rod, with rounded, uncoated, adjustable metal jaws with spring tension and a wing nut. The 3" metal support ring holds the 6" x 6" heavy-gauge steel-mesh burner screen with crimped edges. Nice, solid equipment at a rare price.

About 1/100 of this solid brass 100g cylindrical weight. Measures 1" dia x approx 15/16" tall with a 7/32" ID cup hook at the top. Pretty. Useful for calibrating scales. And accurate to within one percent, which is one reason for this great price, because if it hit 100g on the head every time, we'd be charging you a heck of a lot more.

A recipe from the Elizabethan Cable Food Network? No, just a couple of samples from our collection of (48) specimens preserved for your classroom examination, with (4) well-labeled specimens on each of (12) standard-size slides. You get animal, plant, insect, textile, and pollen and spore specimens, including camel hair, camellia leaf, plant louse, fruit fly, fern spore, bee wing, nylon, wool, lily pollen, bamboo shoot, goldfish scale, and three dozen more, including our homonymic favorite, hare hair. Grades three and up.

What a price for a Sprague Rappaport stethoscope! And the improved model, at that! The 30" long stethoscope can be easily configured for (5) different functions, replacing other styles. It comes with (1) large and (1) small diaphragm, (3) different sizes of bell-type chestpieces, (3) sizes of eartips, and instructions for use. The interchangeable parts are in a compact, clear-plastic carrying case that fits into a pocket. Tubing will be assorted neon colors (our choice).

A clear-glass, heat-resistant, volumetric flask with a ground glass neck and mating glass stoppers. These flasks are calibrated either at 500ml or 1000ml depending on which size you need. Both are around 12" tall. Not into lab work? Try it for techie salad dressings! Ain't surplus cool?

Pat's been hanging around the medical supply house again. We now have a boatload of rubber stoppers, the kind you see on bottles of liquid medicine, crimped down with an aluminum collar. (Pat didn’t buy the aluminum collars.) The medicine is removed via a hypodermic needle through the stopper. The rubber stoppers come in a friendly orange and fit (13 mm) dia openings. The orange are 9/16" across the top, which has a dimple in the center, and 9/16" top to bottom. Why would you want them? Because they'll fit many of the small wide-mouth and slope-shouldered bottles in our Bottlemania listing. Pat's really good!

For students or professionals, this Celestron® Deluxe Handheld Digital Microscope that captures still images and videos is a terrific computer accessory. Plug the USB 2.0 cable into your computer's port and take advantage of the built-in, upgraded 2MP CMOS sensor, 10X to 200X magnification, and 8-LED illumination. It features a 1 sec. to 1/1000 sec shutter speed, 1920x1080, 1280x720 and 640x480 resolutions, max 30fps videos, 10mm to 150mm manual focus and a 2 element glass lens with IR Cut and EFL 158mm. The 4-oz, 4-1/4" x 1-1/4" dia scope may be handheld, or slipped into its metal stand for steadier viewing. Includes CD-ROM software with measurement function and note-taking and a calibration tool. Works with Windows 7/8/10 and MAC OSX 10.12 and up. Very cool.

Getting tired of buying them and trimming them and losing them? Get rid of wicks altogether with this nifty little alcohol burner with a copper capillary tube in place of a cotton wick. Burns 90ml of denatured alcohol and comes with a heat shield (packed inside the reservoir) and a burner cap. Don't forget to remove the little rubber plug - it's there to cover the holes in the copper tube when not in use. And this is lab equipment, so resist the temptation to use it under a chafing dish; initially, it flares up a tad more than is good for Swedish meatballs.

Weighing is easy with this scale's 7" square x 2-5/8" deep dishwasher-safe, easy-pour bowl for kitchen use, and letter holder and mailing tube holder accessories for office use. Goes up to 7kg (7000g) x 1 gram increments and 15.4 lbs in g, kg, lb and oz increments. It has tare, hold, programmable auto-off, and an adjustable audible beep and backlit read-out angle. Takes (3) "AA" batteries, included. Excellent for kitchen, lab or office.

My First Microscope from GeoSafari® Jr.® is a colorful plastic 8X binocular inspection scope for pre-preschoolers. Includes a built-in white LED top illuminator, over-sized rubber eyecups and simple focus knob. Fixed stage holds flat or 3D objects, so there's no need for slides. All you add is (3) "AAA" batteries and a bunch of stuff for them to peer at, like insects and coins.

What's three feet tall and wears a white coat? A kid in a chemistry lab, and don't drink the sparkling water. Dress them right for everything from lab sciences to art projects. Our child-size lab coats are white cotton polyester, 4-button and hip length, with notched lapels, one breast pocket and two side pockets. You pick size 4, 22" long from collar to hem; size 8/10, 26" long; and size 12/14, 28" long.

The sport of the future? No, cork-lined polystyrene boxes for holding microscope slides, complete with numbered slots and inventory sheets on the lids. The boxes are 8-3/4" x 6-3/4" x 1-1/3" with hinged lids. They are stackable, and you might get them in a variety of colors.