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Optical Glass Filters

Al Luebbers, our founder, collected glass. Not glass like you'd find on a knick-knack shelf, but optical glass. Lenses, prisms, reticles and filters, for example. Focus on the filters. Many of his filters came out of military surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. We've found that photographers, artists, and optical designers still have an occasional need for good glass filters, so we're making a list of some goodies. As always, don't be timid about calling for quotes on quantities. If we have 'em, we'll sell 'em. Just don't sell them back. Please!

    DIAM.or SIZE (mm) CENTER THICK (mm)  
3477 FILTER, AMBER 26 1.5
$1.80 PKG(3)
3492 FILTER, AMBER 30 2.3
$1.50 PKG(2)
3480 FILTER, NEUTRAL 26 1.5
$1.80 PKG(3)
3490 FILTER, NEUTRAL 30 2.3
$2.00 PKG(2)
3510 FILTER, NEUTRAL 50x54 3.1
$1.25 EACH
3512 FILTER, NEUTRAL 67x70 4.1
$1.75 EACH
3458 FILTER, RED 6 1.4
$2.00 PKG(4)
3464 FILTER, TYPE A 9 1.8
$2.25 PKG(3)
3470 FILTER, YELLOW 18x18 1.6
$2.00 PKG(4)

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Safety Flasher

"Laser" safety lights each with super bright LEDs run by (2) "AA" batteries that you supply. It's square and has a flashing or steady LED lamp visible up to 2500 feet (distance may be exaggerated). A 2" x 2-1/2" red plastic reflecting lens covers (3) lamps. Hook it on your belt or pack with the belt clip, use the included elastic strap for arm or leg mounting, or the included aluminum flange to attach it to your bike.. It's great for general use as a warning device or as an emergency signal for roadside breakdowns.

89594 LASER SAFETY LIGHT
$2.95 EACH

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Glass Condenser

A great value if you're looking for a 200ml Liebig condenser with drip tip. 14" long x approx 1" dia. center section. 8" long condensing chamber. 4mm inside dia bottom and 22mm inside dia top. 3mm inside dia nipples on the side. Made of heat-resistant glass. A must for every lab.

91697 LIEBIG CONDENSER, 14"
$19.50 EACH

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Stirrup

Wanna stir up a little trouble? We've got just the tool. Our solid glass stirring rod is 8" long x 3/16" dia. Flat ends. Perfect for mixing a scientific formula, a perfect martini or a jar of tempera paint.

88222 GLASS ROD
$2.75 PKG(4)

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Wanna Play Doctor?

For those little surgical jobs: little forceps. Try these 3-1/2" long stainless steel straight forceps with 3/4" long striated jaws. Lock positions: "Tight" and "Yikes!"

92457 SMALL FORCEPS
$2.50 EACH
 

Throw a Net over It, Marge!

We wouldn't try to capture 'gators with it, but this 4-ft x 6-ft black nylon, elastic (not-un-bungie-like) cargo net should trap anything else in the back of the pickup, van or kids' bedrooms. Stretches to about 6' x 9', with openings that are 7" square, stretching to maybe a foot, and 16 carabiner-style plastic hooks. Or just hang a couple on a wall for a nice Spiderman effect.

92582 CARGO NET
$10.95 EACH

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Squeeze 'n' Squirt

Inside the lab, it's a standard translucent-white, LDPE-plastic wash bottle, 500ml/16oz, measuring 2-3/4" dia x 6-3/4 tall with a screwcap and a right-angle, 5/16" dia nozzle. Outside the lab, it's so pleasing to squeeze and squirt with that some of us keep them in the kitchen.

92961 WASH BOTTLE
$3.95 EACH

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Our Flask Inventory Boileth Over

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.

92914 1000 ML FLASK
$11.95 EACH
92912 250 ML FLASK
$5.95 EACH
92913 500 ML FLASK
$6.95 EACH

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21st Century Walking Stick

Walking sticks have moved into the space age! This walker's/hiker's friend has futuristic features and the look of an inter-galactic weapon. The high-quality collapsible aluminum stick extends from a packable 27" to a full 56", and has a carbide tip with a rubber cover, a removable 2" dia disk to keep the stick from sinking into soft ground, and an internal shock absorber that can be turned on or off. At the top, a 5-LED flashlight with a 90° pivot is embedded in a molded-plastic cane-style handle to light your way. For mountain trekking, lengthen the stick, slip the adjustable canvas wrist strap over your hand, and clutch the stick by the padded foam section below the cane handle. Directions, diagrams, and 1100mm to 1350mm gradations are marked clearly on the 3-draw pole. We'll pick a black or anodized red, green, blue, silver or purple version for you.

93032 WALKING STICK
$13.95 EACH

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Add-A-Tread

And save someone's neck. This deeply textured safety tread is diamond-plate-pattern black rubber, 17" x 3-7/8" x 1/4" thick, with a peel-off self-adhesive back. It can be cut, but won't easily crack or tear. A great way to add traction to truck bumpers, RV steps, ladder steps, etc.

93119 SELF ADHESIVE RUBBER STAIR TREAD
$4.75 EACH

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Little Plastic Test Tubes

To meet all of your little plastic test tube needs. They're 13mm x 100mm plastic test tubes (approx 1/2" dia x 3-15/16" long) and will hold 7ml and take #2 or #3 corks, (#2 is a better fit) which aren't included. The bulk price also means you can make endless little vases for keeping flowers fresh in corsages, construct futuristic light fixtures, transparent sculptures, strange centerpieces, whatever. Use your imagination.

93479 SMALL TEST TUBES
$4.95 PKG(50)

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Showing items 1 - 11 of 16 Incredible Things     Page  1 2

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