1-14 Paper strips, change for each full pH unit,100 strips per vial.
Riveted joint. Nickel plated. 9 inches long. Also for test tubes and vials.
3" glass pipet with rubber bulb, straight.
Flat on one end, spoon on other end.
4 inch stailess steel spatucla that is flat on one end, spoon on other end.
Acid resisting sheeting, very flexible and lightweight. Accepted as a standard lab apron for years. Cut to provide ample comfort and protection from laboratory reagents. Reinforced at points of strain. Cotton tapes at waist and neck. 27" x 36".
Flat on one end, spoon on other end.
6 inch stailess steel spatucla that is flat on one end, spoon on other end.
Pure latex gum tubing. A clear amber color. Flexible, with long life under constant use. 3/32" wall thickness.
For efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
This 24 inch x 30 inch child size apron is for efficiency and cleanliness. Reinforced at points of strain (6 mil). Quality tapes at waist and neck.
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.
Features flat countersunk bottom, with a double-ended hooked rod through the middle. Can be used on balance pans, as well as hooked in tandem for lever arm studies. Made of polished brass.
Same as above with plastisol coated jaw.
Same as above with plastisol coated jaw.
It is the ideal teaching tool to introduce elementary and middle school students to the science of meteorology and has a pivoting beam that provides accuracy to 0.5 gram divisions. The interchangeable red square pans are easily removable for pouring, cleaning, and storage. With a capacity of 2000 grams, mass measurements can be achieved for small items such as paper clips, marbles and coins as well as heavier objects such as books. Pan dimensions: 5.5" (14cm)W x 5.5" (14cm)H
It is the ideal teaching tool to introduce elementary and middle school students to the science of meteorology and has a pivoting beam that provides accuracy to 0.5 gram divisions. The interchangeable red square pans are easily removable for pouring, cleaning, and storage. With a capacity of 2000 grams, mass measurements can be achieved for small items such as paper clips, marbles and coins as well as heavier objects such as books. Pan dimensions: 5.5" (14cm)W x 5.5" (14cm)H
Stainless steel spatulas with both ends flat.
Stainless steel spatulas with both ends flat.
These polypropylene connectors are ideal for connecting tubing systems and vacuum lines. They will withstand flows to 20psi, and are autoclavable. Excellent chemical resistance. Serrated connecting surfaces to prevent tubing slipping. Adapters allow for connecting different diameter tubing.
Black bristle. Double tufted end. 1 3/4" brush diameter. 16" overall length.
Black bristle. Double tufted end. 1 3/4" brush diameter. 16" overall length.
• Multi-purpose tool made from polypropylene
• Can be used as a stirrer or spatula.
• Measures 9.5" long with a diameter of 1/4".
• Great for adding small amounts of ingredients and mixing
• An are excellent replacement for metallic scoops
• Come in packs of 12
Multi-purpose tool made from polypropylene can be used as a stirrer or spatula. Measures 9.5" long with a diameter of 1/4".
Large, easy to read numbers and graduations. -40 degreesC to +50 degreesC.
Large, easy to read numbers and graduations. -40 degreesC to +50 degreesC.
• Deluxe set includes everything needed to teach liquid measurement and equivalencies
• Students will recognize, measure and estimate liquid volumes
• Set includes 5 Measuring Jars, 3 Liquid Measurers, 5 Measuring Cups, and 6 Measuring Spoons
• All pieces are clearly marked and made of durable plastic
• Ages 5+
This deluxe set is the perfect sized classroom set for learning measurement equivalents. Students practice customary capacities, liquid measurement and metric conversions with suggested activities included. Made of durable plastic, each piece is clearly marked to provide years of use. Includes teacher's guide. Set includes a liquid measuring cup (8oz/250ml), pint (16oz/500ml), quart (32oz/1000ml), standard spoons, 1 teaspoon,1 tablespoon, standard cups, measuring jars with gill, pint, quart, half-gallon, gallon (metric 100ml-3000ml)
This basket, with wide, net like structure on all sides is useful for draining different laboratory apparatus after washing them. Made of polypropylene, this tray can be autoclaved. Dimensions 16" wide x 16" deep x 4" high.
This basket, with wide, net like structure on all sides is useful for draining different laboratory apparatus after washing them. Made of polypropylene, this tray can be autoclaved. Dimensions 16" wide x 16" deep x 4" high.
Aluminum die cast clamp for holding 2 pieces of apparatus in 3 positions: right angles, parallel or vertical. Holds rods to 1/2" in diameter.
Aluminum die cast clamp for holding 2 pieces of apparatus in 3 positions: right angles, parallel or vertical. Holds rods to 1/2" in diameter.
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 6" x 9" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 6" x 9" base
For 24 tubes, 25mm diameter. Red. 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 24 tubes, 25mm diameter. Red. 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.
Griffin type. Made of Zinc alloy. Die cast. Nickel plated. Cuts tubing up to 38mm (1 1/2") diameter. Spring loaded to stay open.
Good quality, one-piece plastic frame. Glass lens.
50mm magnifying glass with glass lens molded into a high quality unibody plastic frame. 2.5x magnification.