United Scientific Supplies

Pre-cleaned borosilicate glass test tubes without rims. Tubes can be used for hot or cold applications, are reusable, and can be autoclaved.

Nessler cylinders are used for comparison of color and turbidity between solutions or as reaction vessels. Made from borosilicate glass and calibrated to Class A standards. Include an optically plane bottom as well as markings for nominal stroke volume and halfway mark.

This benchtop microcentrifuge is ideal for quick spin-downs of microcentrifuge tubes. Includes a multi-rotor that accommodates twelve microcentrifuge tubes in 0.2ml, 0.5ml, 1.5ml, or 2ml capacities, or four 8-well, 0.2ml PCR strips. Safety lid with lock stops centrifuge quickly when opened. Includes...

These rugged autoclavable storage boxes are molded in polycarbonate, and can be used at temperatures of -150°C to 121°C. Designed to hold 100 each 0.5ml microcentrifuge tubes, or 64 each 1.5ml tubes. The numbered grid on transparent lid is keyed in one position to prevent misalignment. Lid...

Well-constructed and attractive electric bell model mounted on a clear acrylic plate and a finished wooden stand. Functional parts are clearly seen. Operates on 6V d.c. with on/off switch, adjustable contact screw, and binding posts for easy connection.

Demonstrate plate tectonic principles, plate boundary interactions and the geometry and relative motions of faulting of geologic layers using 3-D manipulative models. Versatile kit contains a Fault Model Set of 5 manipulatives and a Tectonics Sand Layer Model. Use the Fault Model Set to demonstrate...

This easy to set up, inexpensive device was designed by teachers in order to collect the correct proportions of hydrogen and oxygen from the electrolysis of water. Its unique design helps correct issues such as falling test tubes perched over unsteady electrodes and gases escaping due to poor...

UniStore™ Wide Mouth Square Bottles are available in different materials and sizes for multiple applications. The high-density polyethylene bottles (HDPE) have excellent chemical resistance to most acids, bases, and alcohols. The square design allows the bottles to nest together for more...

Use the Happy and Sad Balls to explore polymer chemistry. One ball will bounce very high; the other ball will not bounce. A classic demonstration.

Designed to fit onto the top of our star and round base cryogenic vial closures. Provide quick visual indentification of specific vials for ease in organizing inventory. Compatible with all of our cryo vials except P60102 and P60103 skirted base cryo vials.

The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear...

Made from Plate Glass, with carefully ground and polished optical survaces, and cleanly ground edges, these lenses feature a diameter of 38mm - 125mm and focal lengths from 50mm - 500mm.

These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.

This air track is constructed of high quality aluminum alloy and has the advantages of being both lightweight and highly durable. Precision machining provides a smooth surface and high linearity. It comes with a comprehensive accessory package for experiments in linear motion. The track length is...

The 1660-point solderless breadboard is built with high-quality construction that can withstand repeated use. It includes color coordinates that are screen-printed for easy reference. This breadboard is perfect for investigating circuit designs and prototyping. It accepts most electronic components...

Polypropylene cross-shaped connectors with serrated ends are ideal for leak-proof tubing connections. Autoclavable.

Each specimen in this set of five diverse materials cylinders has identical mass and radius. Materials included are aluminum, zinc, tin, steel and copper. Includes a storage box and activity guide.

The liquid convection apparatus is made from Borosilicate Glass and is bent into a rectangle with a filling funnel. To show the convection of heat in a liquid, simply fill it with a colored liquid and place a heat source at one of the bottom corners. Glass tube is 20 mm outer diameter bent into...

Our meters are mounted in black plastic cases. Meters have a scale length of 75mm, offer +/- 2.5% accuracy and come with 5-way binding posts and an external zero-setting screw. Meters are not protected against prolonged or significant overload. Stackable for storage.

With lip and flat porcelain handle. Glazed on inner and outer surfaces except for rim and top of handle. 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...

Our Multichannel Micropipettes are recommended for a wide variety of applications such as ELISA, molecular screening, kinetic studies, and DNA Amplifications. Our Variable Volume Micropipettes feature built-in tip ejectors and autoclavable tip cones. They work on a click stop digital system, are...

Clear plastic magnifier is 90 mm (3.5") in length and features a lens of 3x magnification. The lens is 35mm in diameter.

The United Scientific™; Eco-Mix Vortex Mixer has a simple touch-and-go function that makes it easy to use. The compact design saves bench space, yet the mixer is powerful enough to deliver robust vortex mixing at 3000 rpm. Compatible with centrifuge tubes up to 50mL capacity, and can also be...

Durable, machine-blown body. Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A plastic snap cap is included. Meets Class A specifications per ASTM E-288. Batch certified.