Supplies

The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )

Our beakers are made from low-expansion borosilicate glass. Beakers feature heavy and uniform wall thickness, spouts designed for easy pouring, and beaded tops. The 20ml and larger sizes also have a double graduated metric scale and a marking area. Tolera (1 per EA)

These battery holders are made of unbreakable plastic. Curved tabs prevent the battery from falling out when the holder is inverted. (1 per EA)

United Scientific® Unisafe™ Acetone Vented Wash Bottle. 1000ml (4 per PK )

Boiling, round bottom flasks with ground glass joints. Our boiling flasks are made from low-expansion borosilicate glass. Feature uniform wall thickness for superior mechanical strength and shock resistance. Ideal for boiling, heating and mixing in the la (4 per PK )

5" Long, 3mm Diameter Glass Stirring Rod (12 per PK )

This polyethylene rack will hold six test tubes, and has six drying pins. Sides are fully open for clear viewing. Rack has two 30mm and four 20mm holes, and is pre-assembled. (1 per EA)

Digital stopwatch with lanyard features split and cumulative time modes, 1/100th second increments, calendar/date display, and an alarm. Includes a LR1130 coin battery. (1 per EA )

Tubes with round bottoms are manufactured from ASTM E438 Type 1 Class A Borosilicate 3.3 glass. Includes polypropylene autoclavable screw cap with PTFE liner. (10 per PK )

Borosilicate glass filtering flask with 5000ml capacity. Heavy-walled flask features a heavy-duty rim and bolt neck ideal for vacuum filtration. Graduations are printed in durable white enamel. United Scientific flasks deliver an unbeatable combination of thermal shock resistance and physical strength. (12 per PK )

Good quality plated brass cork borers with handles (1 per EA)

Good quality glazed porcelain. Acid and alkali resistant. Sold as eaches. (1 per EA)

This easy-to-operate hand vacuum pump delivers approximately 15ml per squeeze to create a vacuum of 50mm Hg, or air pressure of approximately 2 atm. Pump features a removable cap and an elastic valve to enable quick release without dismantling the pump from the line. This product is recommended for general laboratory use, in applications that do not require high or precise vacuum conditions. (1 per EA )

Good quality glazed porcelain. Acid and alkali resistant. Sold as eaches. (1 per EA)

Self-closing, available in brass wire or steel wire with brass finish. (1 per EA)

Pre-cleaned coverslips are made of quality, non-corrosive glass and packaged in 1 oz. boxes. The 22 x 22mm sized coverslips are available in thickness #1 or #2. The #1 thickness ranges from 0.13 to 0.17mm. The #2 thickness ranges from 0.18 to 0.25mm. A 1 (1 per EA)

Six 25mm holes, six drying pins, with a 1/2" thick base. Solid hardwood construction. Polished to minimize damage from spills. (1 per EA)

Designed for particulate contamination analyses of hydraulic fluids and oils using gravimetric or particulate counting methods. Contents: * Borosilicate glass funnel, 300ml (FHGF300) * Glass funnel base, 47mm (FHBS47) * Anodized aluminum spring clamp, 47mm (FHSC47) * Stainless steel support screen, 47mm (FHSSR47) * Perforated silicone stopper, No. 8 (FHSTS8) Thick depth prefilter: 35mm Membrane prefilter: 47mm Dimensions: 22.9cm tall x 7.6cm in diameter Sterilization method: 30 UV, or autoclave without filter in place (1 per EA)

Strong wooden box with hinged cover, designed to hold up to 100 standard 3" x 1" microscope slides. Slides fit into numbered beveled slots, and a printed index lines the cover. (1 per EA)

Plates made of clear soda lime glass, 2mm thick, with ground polished edges. Useful for a variety of general laboratory applications including as a cover, mixing surface, etc. (12 per PK )

United Scientific® Coated Wire Rack, 50 mL Centrifuge Tubes, 36 Place, Teal (1 per EA )

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). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

Aluminum Weighing Dishes, Round, 2.8" Diameter (100 per PK )

6" Long, 5mm Diameter Glass Stirring Rod (12 per PK )