General

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 )

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 )

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 )

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 )

STAINLESS STEEL SPATULA, 8" (20 CM), ONE END FLAT, ONE END BENT (10 per PK )

Cast iron, zinc-plated support ring with boss-head clamp and thumbscrew. Distance from support to center of ring is 4-1/2" for all sizes. (1 per EA)

Steel rod, zinc-plated extension support rings. Rod diameter 5/16", overall length 12" for all sizes. (1 per EA)

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 (100 per PK )

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 (100 per PK )

STAINLESS STEEL SPATULA, 8" (BOTH ENDS FLAT) (10 per PK )

These plastic tweezers are 10cm in length and feature serrated tips. Sold as a pack fo 12 (12 per PK )

Double Burette Clamp (1 per EA )

Cast iron ring with black enamel finish. Detachable zinc plated legs are interchangeable for use with various sizes of rings. Rings and legs are also available individually. (1 per EA)

Multipurpose Polypropylene molded trays can be used for sterilizing, drying glassware, porcelain ware, and other laboratory supplies. These steam autoclavable trays have tapered walls designed for nesting (10 per PK )

Good quality round test tube rack will hold 24 tubes up to 20mm in diameter. Solid high-impact plastic construction. Rack is 145mm in diameter and 70mm high, and features a perforated bottom. Shipped preassembled. (1 per EA)

Aluminum rod, measuring 48 inches long and 1/2-inch in diameter. Designed for use with United Scientific Lattice Lab Systems. (1 per EA)

Steel rod, zinc-plated extension support rings. Rod diameter 7 mm (0.27”) and the straight rod portion of each is 7.25” (184 mm) long. Open support rings are ideal for use with funnels, boiling flasks, and separatory funnels. (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)

Compact pocket loupe in a sturdy folding metal case. 10x magnification (1 per EA)

Polypropylene cross-shaped connectors with serrated ends are ideal for leak-proof tubing connections. Autoclavable. (12 per PK )

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

These polypropylene racks can conveniently hold inverted tubes for drying and minimize collection or airborne contaminants. Racks can also be used to hold and dry electrophoresis and chromatography plates. Auto clavable. The 50 place rack features an 5 x 10 array of pegs that hold test tubes up to 16mm in diameter. (6 per PK )

Heavy cast iron bases with black enamel finish. Includes a removable, zinc-plated steel rod. (1 per EA)

Sturdy, economical and convenient racks for samples stored in vials. Autoclavable at 120° Celsius for 20 minutes. Can be stacked when not filled, for easy storage. Each well features a drainage hole at the bottom. (5 per PK )