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Smoking Experiment Kit Filter Refills (25 filters)Smoking Experiment Kit Filter Refills (25 filters)
Smoking Experiment Kit Filter Refills (25 filters)
11423

Replacement filters for the "Effects of Smoking Kit." Contains 25 filters.

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$14.36 Each $17.95 Each
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25mm Meker Bunsen Burner - Natural Gas
25mm Meker Bunsen Burner - Natural Gas
14539

Natural gas bunsen burner for high temperature work. Nickel-plated brass tube with rotatable non-removable air regulator. Perforated metal burner head 25 mm diameter produces an evenly aerated flame of uniform intensity. On heavy stable cast-iron base, baked hammertone finish, with serrated gas inlet tube 9 mm diameter.

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$23.96 Each $29.95 Each
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13mm Bunsen Burner w/ Valve - LP or Bottle Gas
13mm Bunsen Burner w/ Valve - LP or Bottle Gas
14538

Nickel-plated brass burner tube 13 mm diameter with rotatable non-removable air regulator, on stable cast iron base, baked hammertone finish, with serrated gas inlet tube and threaded needle valve to regulate the intensity of the flame.

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$19.96 Each $24.95 Each
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13mm Bunsen Burner - Natural Gas
13mm Bunsen Burner - Natural Gas
14536

Nickel-plated brass burner tube 13 mm diameter with rotatable non-removable air regulator, on stable cast iron base, baked hammertone finish, with serrated gas inlet tube.

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$14 Each $17.50 Each
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13mm Bunsen Burner - LP or Bottle Gas
13mm Bunsen Burner - LP or Bottle Gas
14537

Nickel-plated brass burner tube 13 mm diameter with rotatable non-removable air regulator, on stable cast iron base, baked hammertone finish, with serrated gas inlet tube.

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$14 Each $17.50 Each
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Round Magnifier - 4"
Round Magnifier - 4"
03271

Glass lens, metal rim with plastic handle.
Glass lens, metal rim with plastic handle.

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$4.40 Each $5.50 Each
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Round Magnifier - 3"
Round Magnifier - 3"
03204

Glass lens, metal rim with plastic handle.
Glass lens, metal rim with plastic handle.

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$3.60 Each $4.50 Each
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12mm Bunsen Burner - Natural Gas
12mm Bunsen Burner - Natural Gas
14534

Nickel-plated brass tube 12 mm diameter with a non-removable screw type air regulator also provided with a threaded needle valve flame intensity regulator, with brass 9 mm diameter serrated gas inlet tube. On stable heavy cast-iron base, baked hammertone finish.

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$19.60 Each $24.50 Each
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Replacement Flints for Gas Lighter (Pack of 5)
Replacement Flints for Gas Lighter (Pack of 5)
14294

Pack of 5 Replacement Flints for Gas Lighter.

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$0.92 Set $1.15 Set
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Red Litmus Paper (12 vials)
Red Litmus Paper (12 vials)
46795

pH test paper is used to determine the acidity or alkalinity of a solution. Using pH test paper provides a quick visual indication of the degree of acidity or alkalinity present in whatever solution is being tested. This is a vital tool for classroom projects or field trips. Our test papers offer a wide variety of pH papers. They are supplied in a clear plastic vial containing 100 3mm x 12mm strips. All include color guides in vial. 100 strips per vial.
pH test paper is used to determine the acidity or alkalinity of a solution. Using pH test paper provides a quick visual indication of the degree of acidity or alkalinity present in whatever solution is being tested. This is a vital tool for classroom projects or field trips. Our test papers offer a wide variety of pH papers. They are supplied in a clear plastic vial containing 100 3mm x 12mm strips. All include color guides in vial. 100 strips per vial.

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$14.36 Dozen $17.95 Dozen
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Stackable Test Tube Rack - Yellow
Stackable Test Tube Rack - Yellow
16610

For 60 tubes, 16mm diameter. Yellow. Steam autoclavable up to 121 deg C (250deg F). Can be disassembled for storage. Dimensions 9.75" wide x 4" deep x 2.5" high.
For 60 tubes, 16mm diameter. Yellow. Steam autoclavable up to 121 deg C (250deg F). Can be disassembled for storage. Dimensions 9.75" wide x 4" deep x 2.5" high.

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$4.76 Each $5.95 Each
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Stackable Test Tube Rack - Blue
Stackable Test Tube Rack - Blue
16611

For 90 tubes, 13mm diameter. Blue. Steam autoclavable up to 121 deg C (250deg F). Can be disassembled for storage. Dimensions 9.75" wide x 4" deep x 2.5" high.
For 90 tubes, 13mm diameter. Blue. Steam autoclavable up to 121 deg C (250deg F). Can be disassembled for storage. Dimensions 9.75" wide x 4" deep x 2.5" high.

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$4.76 Each $5.95 Each
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Pound of 1-Hole Stoppers
Pound of 1-Hole Stoppers
15972

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in solid and two-hole versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.

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$5.56 Pound $6.95 Pound
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Small Alcohol Burner Stand w/ Ceramic Center
Small Alcohol Burner Stand w/ Ceramic Center
14292

Made of steel wire, chrome plated. Stand has a heavy wire gauge top. Overall height is 5", to accommodate all sizes of burners.
Made of zinc plated steel wire. Stand has a heavy wire gauge top with ceramic center. Overall height is 5in, to accommodate all sizes of burners.

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$2.36 Each $2.95 Each
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Porcelain Triangle
Porcelain Triangle
47856

Quality white clay pipe stems. Galvanized iron wire. 2" side length.
Quality white clay pipe stems. Galvanized iron wire. 2" side length.

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$0.92 Each $1.15 Each
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Small Alcohol Burner Stand
Small Alcohol Burner Stand
14291

Made of steel wire, chrome plated. Stand has a heavy wire gauge top. Overall height is 5", to accommodate all sizes of burners.
Made of zinc plated steel wire. Stand has a heavy wire gauge top. Overall height is 5in, to accommodate all sizes of burners.

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$2 Each $2.50 Each
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Slotted Weight Set
Slotted Weight Set
14951

Set of 10 slotted weights consisting of 1 each 10g, 2 each 20g, 1 each 50g, 5 each 100g and 1 each 500g weights. Weights are made of brass. Set comes with metal rack.
Set of 10 slotted weights consisting of 1 each 10g, 2 each 20g, 1 each 50g, 5 each 100g and 1 each 500g weights. Weights are made of brass. Set comes with metal rack.

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$55.96 Set $69.95 Set
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Pocket Loupe (10X)
Pocket Loupe (10X)
16221

Compact pocket loupe, in a sturdy folding metal case. 10x magnification
Compact pocket loupe, in a sturdy folding metal case. 10x magnification

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$4.60 Each $5.75 Each
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Round Magnifier - 2"
Round Magnifier - 2"
15017

Glass lens, metal rim with plastic handle.
Round magnifier with 50mm glass lens mounted on a metal frame with bakelite handle. 2.5x magnification.

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$2.20 Each $2.75 Each
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Replacement Electrode for Checker 1 pH Meter
Replacement Electrode for Checker 1 pH Meter
13922

If you already own a checker, this replacement electrode will fit any checker.
If you already own a checker, this replacement electrode will fit any checker.

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$20.88 Each $26.10 Each
16 sizesSave 20%
Pound of Solid Stoppers
Pound of Solid Stoppers
15956

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in one-hole and two-hole versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.

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$5.56 Pound $6.95 Pound
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Pound of Assorted Stoppers
Pound of Assorted Stoppers
16172

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Each stopper has its size marked in raised figures. Sold as one-pound bags.

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$6.36 Set $7.95 Set
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Ohaus Triple Beam Balance - 610 Grams
Ohaus Triple Beam Balance - 610 Grams
46884

Capacity: 610 Grams. Sensitivity: 0.1 Grams. Calibrations: Front Beam - 10g x 0.1g, Center. Beam - 500g x 100g, Rear Beam - 100g x 10g
Capacity: 610 Grams. Sensitivity: 0.1 Grams. Calibrations: Front Beam - 10g x 0.1g, Center. Beam - 500g x 100g, Rear Beam - 100g x 10g

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$132 Each $165.00 Each
16 sizesSave 20%
Pound of 2-Hole Stoppers
Pound of 2-Hole Stoppers
15990

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in one-hole and solid versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.

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$5.56 Pound $6.95 Pound
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