
This connector is 3-3/8" of straight "in-line" plastic with 5/8" ridges only and a 13/32" I.D. It has a separator rib around its mid-section.
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24352 IN-LINE CONNECTOR |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Plastic disc, 2-1/4" dia with a diffraction grating face. Place the disc in the sunlight, and it will reflect a myriad of rainbow splashes on a wall, ceiling, screen etc. Neat!
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88884 RAINBOW BOUNCER |
Terrific little glass bottles with looooong necks, in the shape called "Ampules". About half the total height is a standard cylindrical shape, at the top of this there is shoulder and above that, is an elongated tulip shaped neck. All are clear. They may have either a blue, gold or ground band on or below the "bulb" of the tulip. Bud vases for a single forgetmenot, decorative holders for colored sand or water, delicate vials for perfumes and essences, whatever the use, you just won't find them in stores. The 5 ml is 88mm tall with a 6mm neck and is 16mm in diameter at the bottom. Looking for bulk savings? Try our case packs and save over 50%!
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20958P20 AMPULE, 5ML | |
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20958P288 AMPULE, 5ML, CASE (288) |
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 blue, gray or orange. All three stoppers fit (13 mm) dia opening. The blue and gray are 3/4” across the top, 5/16” top to bottom. The orange are 9/16" across the top 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!
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28991 LG BLUE STOPPER | |
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23438 LG GRAY STOPPER | |
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40938 LG ORANGE STOPPER |
Chemically treated paper strips to test for acid or base (alkaline) solutions. Use the blue for acids, the red for bases. The more sophisticated pH test paper strip indicates pH from 1 (bright red) to 14 (dark brown). Values in between can be read by comparing with a color chart that comes with the strips. All have (100) strips of test paper per vial.
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88217 BLUE LITMUS PAPER | |
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88219 HYDRION PH PAPER | |
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88218 RED LITMUS PAPER |
Three-legged steel stands for cooking above burners in the lab. The unit stands 6" tall with a 2–1/4" ID (3–1/4" OD) burner ring. Legs are 1/4" wide chromed steel and angle outward slightly. Burner rings have a grey baked enamel finish. Legs screw into burner rings and have adjusting nuts. Sturdy construction.
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89735 BURNER STAND, 6" |
Rejoice, we have finally found a source of reasonably priced borosilicate lab glassware. This is the kind of glass in the trade marked Pyrex(tm) and Kimax(tm) labware. The stuff you can put right over the flame of the Bunsen burner, or directly onto the hot plate. This stuff is imported from China, and is considered student grade, which is good enough for anything but the most exotic applications. We have beakers, test tubes, graduated cylinders and flasks. Compare the prices below and you will see that they are around half the U.S. equivalent. Call us for larger quantity prices.
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88987 BEAKER, 1000ML | |
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92611 BEAKER, 2000ML | |
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88985 BEAKER, 250ML | |
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88984 BEAKER, 50ML | |
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88986 BEAKER, 600ML | |
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88993 ERLEN FLASK, 500ML | |
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88992 ERLEN. FLASK, 250ML | |
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88991 ERLEN. FLASK, 50 ML | |
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88989 GRADUATED CYL. 100ML | |
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88988 GRADUATED CYL. 10ML | |
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88990 GRADUATED CYL. 250ML | |
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88995 TEST TUBE, 13X100MM | |
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88996 TEST TUBE, 16X150MM | |
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88997 TEST TUBE, 20X150MM | |
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92614 TEST TUBE, 25X150MM |
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.
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90069 BOX FOR 100 SLIDES |
One wiseacre assumed we meant any package leaving our shipping room that once had a glass object in it. That is a malicious rumor. . . Ground glass is thin plate glass, the surface of which has been physically ground or acid-etched to create a grainy, grayish, opaque surface. Use it to produce an image from a lens or lens system. Even a simple magnifier, held between the ground glass and, say, a window, will produce an image of the window scene on the ground glass. Ground glass has another magical property: it is opaque to any object viewed at a distance, but not if that object is in direct contact with the glass surface. A necessary element of your optical education. #2728 (square) is 2"sq x 1/32" thick. #2610 (rectangular) is 3-1/2" x 4-3/8" x 1/16" thick.
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2610 RECT. GND. GLASS | |
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2728 SQUARE GND. GLASS |
Mystery Boxes of stuff like what you see in the catalog. Maybe we had a little left but not enough to continue the listing. Maybe we only got a few as part of an odd lot. Maybe we just lost some, and just found them in our warehouse. You will get items which originally listed for at least $25.00 total in our catalog (or would have, if we had enough). You pick. The "electro-mechanical" box has things like motors, switches, hardware and components that are useful parts but want to be worked into something bigger. The "consumer" box has more ready-to-go type items, and things that don't have as technical a flavor, like bottles, toys, books and giant rubber bands. The fun is in the mystery and surprise. Perfect if you don't know what to give Aunt Maude and Uncle Ned, or if you can't decide how to bring your order up to the minimum. Every couple of months the contents will keep changing, so even if you have gotten a box before, feel free to order again! (Please note: Ordering multiple boxes at the same time will result in duplicate items.)
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23610 CONSUMER SURPRISE BOX |
Tubing for all your tubing needs. We have rubber, acrylic, vinyl, and PVC, in a variety of somber colors. All are nice and flexible like a tube ought. And they're all at our typically low, low prices. See the table for the specs.
| Material | Color | ||||
|---|---|---|---|---|---|
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25401 TUBING, 1/4"X3/8" | PVC | Green | Details | |
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27669 TUBING, 1/8"X3/16" | PVC | White | Details |
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