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"D" Heavy-Duty Batteries - 6 Pack
"D" Heavy-Duty Batteries - 6 Pack
BT035P

6 Pack of Heavy-Duty "D" batteries.

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$5.85 Pack
2 Sizes
"T" Tubing Connector
"T" Tubing Connector
14881

Polypropylene with serrated connecting surfaces. Autoclavable, excellent chemical resistance. Two sizes available.

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From $1.05 Each
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1 1/2 gal. Domed Cover w/ Dial Ventilator (10 1/2" x 7" x 3 1/4")
1 1/2 gal. Domed Cover w/ Dial Ventilator (10 1/2" x 7" x 3 1/4")
11985

Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank. 10-1/2 in. x 7 in. x 3-1/4 in.

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$9.50 Each
1 1/2 gal. Flex Cover (10 1/2" x 7")
1 1/2 gal. Flex Cover (10 1/2" x 7")
14523

Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank. 10-1/2 in. x 7 in.

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$4.95 Each
1 1/2 gal. Flex-Tank only (11" x 7" x 5")
1 1/2 gal. Flex-Tank only (11" x 7" x 5")
11984

Great for creating terrariums, small aquariums, or as a critter cage. Solves the cracking and breakage problem of rigid plastic and glass tanks. Unique features include nestable to save storage space, flexible, shatterproof material, molded foot pegs that prevent scratching and temperature transfer, and rounded corners for easy clean up. 1.5 gallon tank. 11 in. x 7 in. x 5 in.

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$8.95 Each
1 gal. Flex-Tank Cover (7" x 7")
1 gal. Flex-Tank Cover (7" x 7")
14521

Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank.

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$3.20 Each
1 gal. Flex-Tank only (7" x 7" x 5")
1 gal. Flex-Tank only (7" x 7" x 5")
14520

Great for creating terrariums, small aquariums, or as a "critter" cage. Solves the cracking and breakage problem of rigid plastic and glass tanks. Unique features include nestable to save storage space, flexible, shatterproof material, molded foot pegs that prevent scratching and temperature transfer, rounded corners for easy clean up, and no-drip cover. Exclusive design forces condensation to remain in the tank.

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$5.50 Each
1/2 gal. Flex-Tank Cover (5 3/8" x 7")
1/2 gal. Flex-Tank Cover (5 3/8" x 7")
14518

Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank.

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$2.25 Each
1/2 gal. Flex-Tank only (5 3/8" x 7" x 3 3/4")
1/2 gal. Flex-Tank only (5 3/8" x 7" x 3 3/4")
14517

Great for creating terrariums, small aquariums, or as a critter cage. Solves the cracking and breakage problem of rigid plastic and glass tanks. Unique features include nestable to save storage space, flexible, shatterproof material, molded foot pegs that prevent scratching and temperature transfer, and rounded corners for easy clean up. Half gallon tank. 5-3/8 in. x 7 in. x 3-3/4 in.

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$3.25 Each
11mm Bunsen Burner - Natural Gas
11mm Bunsen Burner - Natural Gas
14532

Nickel-plated brass burner tube 11 mm diameter with rotatable non-removable air regulator. On stable cast iron base, baked hammertone finish, with serrated gas inlet tube 9 mm outer diameter.

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$8.95 Each
11mm Standard Burner, LP (Cylinder) gas
11mm Standard Burner, LP (Cylinder) gas
14533

• Standard Burner,
• LP (Cylinder) gas,
• 7/16"(11mm) Mixing Tube OD,
• 0.55 CFH,
• 1,342 BTU Output,
• 5-3/8" (137mm) Overall Height
• 5/16" Serrated OD inlet


High-quality, American-made burner with nickel-plated, die-cast zinc bases. Burner feature aluminum mixing tube and 5/16" serrated gas inlet connection. 7/16"(11mm) Mixing Tube OD, 0.55 CFH, 1,342 BTU Output, 5-3/8" (137mm) Overall Height. CFHs and BTU Outputs are figured on: 5 inch Water Column Pressures for Artificial and Natural Burners. 11 inch Water Column Pressures for LP Burners.

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$8.95 Each
14" Rubber Rim
14" Rubber Rim
GY290P

Add this rubber rim to one of our 14" bases to protect your floors when using base indoors.

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$8.95 Each
2" Support Ring - Cast Iron
2" Support Ring - Cast Iron
47805

For rods up to 1/2" diameter.
2 inch cast iron, zinc-plated support ring with boss head clamp and thumbscrew. Distance from support to center of ring is 4-1/2 inches. For rods up to 1/2 inch in diameter.

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$6.95 Each
2020 Schoolmasters Safety Catalog
2020 Schoolmasters Safety Catalog
SafetyCat

Everything from our web site compiled into a 52 page catalog for easy browsing.

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$0.00 Each
3" Horseshoe Magnet
3" Horseshoe Magnet
15109

3 inch strong zink-plated steel horseshoe magnet with North and South poles marked. Supplied with keeper.

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$3.75 Each
3" Support Ring - Wire
3" Support Ring - Wire
11924

Cast iron, zinc-plated support ring with boss head clamp and thumbscrew. Distance from support to center of ring is 4-1/2". For rods up to 1/2" diameter.
3 inch cast iron, zinc-plated support ring with boss head clamp and thumbscrew. Distance from support to center of ring is 4-1/2". For rods up to 1/2" diameter.

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$6.50 Each
3-D Fossil Reproductions
3-D Fossil Reproductions
16274

Fascinate your students with the study of fossils. Kit contains 21 plastic reproduction fossils that students can measure, identify, and classify according to geologic era using the included fossil key. Grades 6-12.

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$9.95 Each
3.5" School Safety Patrol Button (Red on Yellow)
3.5" School Safety Patrol Button (Red on Yellow)
SF025P

School Safety Patrol incentive button. Red on Yellow. The large 3.5 inch diameter buttons have metal backs and strong hold-tight pin. They are designed to identify and enhance your safety patrol team while assisting crossing guards.The buttons can be worn with pride as everyone respects the school safety patrol.

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$2.25 Each
3.8V Lamp Socket Bulbs - Pack of 10
3.8V Lamp Socket Bulbs - Pack of 10
14718

Standard flashlight sized bulb with threaded base.
Standard flashlight sized bulb with threaded base.

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$3.95 Set
37.5 mm Concave Mirror
37.5 mm Concave Mirror
11997

Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality silvered glass. Focal length 150 mm.

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$1.75 Each
37.5 mm Lens Set
37.5 mm Lens Set
12003

Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.
Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.

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$9.25 Set
4" Horseshoe Magnet
4" Horseshoe Magnet
15110

4 inch strong zink-plated steel horseshoemagnet with North and South poles marked. Supplied with keeper.

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$4.95 Each
4" Reflective Cone Collar4" Reflective Cone Collar
4" Reflective Cone Collar
SA537P

For 28" cones. Reflective high tack adhesive backed cone collars made from tough, durable, and flexible UV stabilized polyester sheeting. Three times brighter than previous cone collars and comply with FHA requirements. Cone not included.

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$6.95 Each
4" Support Ring - Cast Iron
4" Support Ring - Cast Iron
47821

For rods up to 1/2" diameter.
4 inch cast iron, zinc-plated support ring with boss head clamp and thumbscrew. Distance from support to center of ring is 4-1/2 inches. For rods up to 1/2 inch in diameter.

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$8.95 Each