Build your own series circuit using the handy Create-A-Circuit-Kit. It comes complete with a "D" cell battery holder, a knife switch, two miniature light bulbs, two lamp holders, and four connector cords. Instructions are included.

Our wide mouth, square-shaped, media bottles have large openings that enable the easy storage and transfer of substances. Every bottle is autoclavable and comes with easy to read imprinted graduations. GL80 Polypropylene screw caps are included.

This is a simple and economical type of electrolysis apparatus. Platinum electrodes are attached to insulated connecting rods which are attached to binding posts mounted on a non-conducting support. The support rests across the top of a battery jar (not included) and has two clips that each hold an…

Made of quality sheet glass with ground edges, each slide is pre cleaned and packaged in boxes of 72 each. Available in standard shape or rounded corners for additional safety.

Storage vials are designed for use with samples from -80°C to 121°C. DNase, RNase, and Pyrogen-free. Used for storage of PCR reagents, enzymes and other diagnostics, biochemical reagents or samples.  Polypropylene vials feature a large white frosted labeling area, silk screen…

Beakers, molded in Polypropylene, have excellent clarity and very good chemical resistance. They are autoclavable and feature raised graduations on the outer surface. Griffen style beakers next without sticking together.

The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. Superior quality neutral filter paper. Suitable for medium filtration, very low ash content.

United brand bottle top dispensers offer high accuracy at economical prices. Each dispenser is individually calibrated and certified in an ISO 17025 accredited laboratory in accordance with ISO 8655 standards. Five adapters are included with each unit for use with a wide range of bottle sizes. All…

A convenient set of 5 glass erlenmeyer flasks in sizes 50ml, 125ml, 250ml, 500ml, and 1000ml

United Scientific™ serological pipettes feature black graduations for precise reading and accurate dispensing. Reverse graduations show volume removed or remaining on all pipettes larger than 1 mL. Negative graduations provide additional pipetting volume. Manufactured from transparent USP…

Each vial contains 100 strips, 2" x 1/4"

Economical yet very durable racks that are submersible, autoclavable, and easily stack when empty.  Made from a special blend of polypropylene (PP) that makes them sink in a water bath and maintain their stability, even in agitated water.  The top tier features an alphanumeric grid…

Help students to investigate the force on an object in circular motion with this convenient kit. Through a series of simple demonstrations, students will better understand the relationship between the radius of the circular motion, the velocity of the moving object, and the external force required…

Our inoculating loop features an 8" long non-insulated aluminum handle. The non-calibrated 26 gauge nickel-chromium wire loop is approximately 8mm in diameter.

Self-zeroing burette mounts on a glass bottle. Includes a PTFE needle valve stopcock, intermediate stopcock and rubber bellows. Class A, ASTM E-287, meets USP standards, individually serialized and certified. Includes Schellbach backing for easy reading of liquid levels. With amber…

Good quality plated brass cork borers with handles.

For covering boiling solutions Fire-polished edges concave shape Can be used on funnels, dishes and jars

Burettes with straight bore teflon (PTFE) stopcocks are made from the highest quality, accurate bore tubing to provide a high degree of accuracy, reliability, and durability. All graduations are in resilient white enamel. Accuracy per Class "B".

Transfer (Volumetric) pipettes are manufactured from specially selected, heavy wall machine drawn borosilicate accurate bore glass tubing. They have precision fored jets and bevel ground ends to resist chipping. The graduation marks are in durable white enamel or amber stain; both are resistant…

These grade XXX tapered cork stoppers are an excellent choice for general laboratory use. They are effective for both liquid and solid mediums, and offer light weight, resilience and compressibility. Chemically inert and moisture resistant. Sold as packs of 100.

Manufactured from 5.1 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements, these test tubes are great for any lab. Each tube has a marking spot and reference mark for orientation during use and a threaded neck to accept screw cap, not included.

Manufactured with 304 Stainless Steel, United Scientific™ REUZ™ (“re-use”) Pharma Scoops have polished surfaces and rounded edges. The corrosion-resistant stainless construction includes large handles and smooth, large radius interior surfaces for easy cleaning and protection against bacteria…

Demonstrate how two identically sized cans absorb and radiate energy differently. One of the screw cap cans is smooth metal and the other is painted dull black. Water cools or heats at different rates because of the thermal radiation emitted by the two

This mineral test kit is useful for rock, mineral and fossil identification. Kit includes: Hardness scale, dropper bottle, hand lens, glass streak plate, black streak plate, white streak plate, cermaic bar magnet, nail and penny.

350mm length magnetic bar retriever.

Constructed of anodized aluminum, with steel hooks, this spring scale is extremely durable. Available in seven color-coded sizes.

This kit contains essential components for short path distillation. All glass parts are manufactured from high quality 3.3 borosilicate glass. Short Path Distillation Head (two included in the kit) with 24/40 flask joints features a condenser coil and three ¼” hose nozzles, two for…

Plates include numerous 5mm diameter perforations. Also includes large hole in center. Glazed on one side. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our…

Protect against cross-contamination using these racked, sterile low retention filter pipette tips. Retention level is 10 times lesser with viscous samples than standard pipette tips. These universal tips are manufactured from polypropylene and the filters are manufactured from polyethylene with a…

Glass thermometer mounted on aluminum back. Thermometers are filled with approximately 3 grams of Toluene mixed with red color.

This series of digital heating mantles includes a built-in stirrer function. Separate knobs control the temperature level up to 400° C and stirring speed up to 800 rpm. The external probe allows the temperature of the contents of the flask to be directly measured. Case is constructed of durable…

Moulded in Polypropylene, Spatula consists of a spoon on one side while the other end is a flat construction with a knife edge. This edge is helpful in breaking up crystals of different salts while the spoon is used to draw salts from the containers.