Rubber Stoppers packaged in convenient 1lb bags. Available in solid, 1 hole, and 2 hole versions.

All the wide mouth jars are made from soda lime glass and have a PP cap with a PE liner. Since the opening is so large, it is easy to insert and remove materials. Autoclavable Size (oz) Diameter (mm) Height (mm) Mouth Diameter (mm) 2 6 48.5 …

Impact-resistant and built to last, United Scientific REUZ™ (“re-use”) beakers are made of 304 Stainless Steel. The corrosion-resistant stainless construction includes rolled top rims, smooth edges and radiused corners for easy, thorough cleaning. These beakers do not contain graduation markings -…

Tall form Berzelius beakers without a spout. Our beakers are made from low-expansion borosilicate glass. Beakers feature heavy and uniform wall thickness and beaded tops. Also include white printed graduations and a marking area. Tolerance for beakers is approximately +/- 5%.

This basic breadboard kit contains all of the basic connecting parts to start exploring circuit design. The kit includes a variety of connecting cord sizes and two breadboards. All that is required is to provide components such as resistors, LEDs, or capacitors. Kit Contents: …

These bright red, easy to open, polypropylene (PP) Biohazard Bags are for disposal of biohazard waste and plastic laboratory items such as used tips and tubes. Bags have a clearly printed biohazard symbol and pass ASTM 1922 tear resistance and ASTM 1709 dart impact tests. Steam autoclavable…

Variable Volume Micropipettes feature built in tip ejectors and autoclavable tip cones. Offered in nine volume ranges. Each pipette is individually calibrated according to ISO 8655 standards. They work on a click stop digital system and are easy to calibrate and maintain. Each pipette is easy…

This all-glass filter holder is used in particulate contamination analysis for filtering aqeuous, organic, or corrosive liquids. It is also recommended for HPLC solvent filtration. Complete set includes a borosilicate glass funnel, anodized aluminum spring clamp, vacuum base with sintered disc,…

These polypropylene tubes feature a screw top with easy to read black graduations. These sterile, conical bottom tubes also feature a writing area to allow for easy sample identification. Temperatures between 0-40degrees Celsius are the suggested working range.

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…

Stainless steel flask tongs are 12” long with riveted joints. Heavy duty construction safely accommodates flasks up to 5000ml. Silicone-coated jaws grip flasks firmly and open to 6”.

4.5" straight point general purpose metal tweezers.

These polypropylene, autoclavable carboys are equipped with a preassembled leak-proof stopcock. Ideal for storing and dispensing various laboratory solutions. Threads should be totally disengaged before autoclaving.

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.

Tapered white nylon bristles with a white nylon fan tip provides effective cleaning action for centrifuge tubes, vials and small funnels.

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…

Manufactured in a precision molding facility from 100% virgin polypropylene, United micropipette tips are DNase, RNase and Pyrogen free. The highly smooth surface is hydrophobic to provide low liquid retention, increased accuracy and repeatability. Inner radial rings enable an airtight grip on the…

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.

Made from high quality borosilicate glass, these autoclavable, flat, clear Petri dishes can withstand repeated sterilization and can be used many times. Each dish includes a lid. Note: Lid does not seal air tight.

Slotted weight set with hanger & case, brass. Includes 1x50g, 9x20g, 1x10g, 2x5g, hanger

This classic devise is used to demonstrate the conservation of mechanical energy and its conversion from one form to another. After the wheel is rotated by hand to roll the supporting cords to the top and then released, its potential energy turns into kinetic energy of rotation as it falls. After…

These square flint glass bottles include screw cap with dropper assembly are designed for general use. The glass is non-porous, which allows for easy cleaning or autoclaving.

PMP (TPX) beakers feature easy to read silk screened printed graduations. Beakers are autoclavable. Tapered stacking style saves space and makes it easy to handle.

Borosilicate Glass Erlenmeyer Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack, Wide Mouth.

An excellent hand held spectroscope for viewing the spectra of many different light sources. Durable construction with compound prisms and converging lenses made of high quality optical glass.

Featured displays of this electronic alarm stopwatch include time (hours-minutes-seconds, with 12 or 24 hour mode option), calendar, 24-hour stopwatch, alarm, hourly chime, 1/100 second chronograph, split time, and total time. It is lightweight, easy to operate, ad comes complete with battery and…

With its thick glass walls and sturdy construction, this 10L bottle/flask is perfect for filtering large volumes of liquid. The thick walls and design enables this flask to withstand vacuum filtration without imploding. Graduated in 1000mL increments on a scale from 2000mL to 8000mL with an…

100 strips each in matching color plastic vials. Individual strips are approximately 2" long and 1/4" wide.

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…

Our polypropylene conical measuring cylinders are ideal for measuring small quantities of reagents. They are autoclavable and have excellent contact clarity. The hexagonal base provides excellent stability to the cylinder, and the tapered spout enables easy pouring of reagents. Features…

Large Periodic Table of the Elements measures 47" wide and 35.5" tall is easily visible from every corner of the classroom. Durable material will withstand heavy classroom use. Elements included up through UUO #118.

Each unit consists of a wooden resonator box, tuning fork, and a tuning fork mallet. Resonator box is 18cm x 9cm x 5cm.