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  • Solid PTFE Joint Stoppers

    Across International

    M ade with solid PTFE for air tight vacuum work, one of the highest quality products you can find in the market.

  • Glass Beads, Borosilicate, Soda Lime

    DWK Life Sciences (Kimble)

    Solid Borosilicate (5663F29 to F47) With diameters selected within a tolerance of ±0.5 mm Kimax brand specific gravity is 2.23 Soda Lime Glass (5663L13 - L31) Made of soda lime glass, specific gravity is 2.49, approximately spherical In 1 lb. packages …

  • With the condenser being a combination of a cold coil and Leibig. Top outer joint is a 10/18 for use with a 50mm immersion thermometer. For best result, use D272440.

  • With standard taper outer or spherical socket joint at one end and a hose connection at the other end.

  • Glass mosquito feeder with an outer chamber for circulating 37°C water and an inner chamber into which the blood is injected. Mosquito feeding area is 14mm diameter. Parafilm™ is stretched over the lower portion of the inner chamber. The assembled feeder is held on top of the screened…

  • 3 to 6 mm in diameter Diameter tolerance is ±0.75 mm PYREX solid glass beads are useful for packing in distillation columns, mixing beads and boiling stones. Beads are packaged in 0.45 kg (1 lb) boxes, which have a packing volume of approximately 360 cm 3 or 22 cubic inches.

  • Ace Glass pressure tubes and bottles are the premier glass pressure vessels in the industry. Flat-bottomed bottles are rated at 60psi at room temperature while our tubes are rated at 150psi at as much as 120 degrees C. Due to varying conditions, Ace ca

  • KIMAX Brand Glass Stirring Rods

    DWK Life Sciences (Kimble)

    With both ends rounded Designed from Federal Specification NNN-R-560, Type 1 Length x diameter in mm are shown in listings

  • Reservoirs used for storing high performance, low pressure liquid chromatography mobile phase. Complete reservoir system includes a plastic coated graduated bottle, a standard cap assembly, and solvent and sparging filters. Cap assembly fits GL45 threaded bottles and has a PTFE bulkhead with three…

  • With return line to allow excess solvent to return to boiling flask. Suitable for ASTM D 95 and E 123. Joints are 24/40.

  • Borosil® Polished Glass Solid Stirring Rods are constructed from smooth, low-expansion, low-extractable borosilicate glass. Their mechanical strength, excellent heat resistance, and outstanding chemical compatibility make them the perfect general use stirrer. Borosil® Glass Stirrers…

  • Borosilicate Glass Stir Rods

    GSC International, Inc.

    Borosilicate Glass with Fire Polished Ends

  • Borosilicate Glass Rods

    Friedrich & Dimmock

    Popular sizes in convenient packages Lengths are approximately 4', in packs of 10 lbs. Assortment pack contains each size glass rod, in the following quantities.

  • Heavy wall pressure vessels have an internal thread for use with PTFE bushings as pressure seals. The unique design allows hand tightening and loosing for easy access into the vessel. O-ring is positioned on the bushing above the thread for improved sealing. Vessels are useful for pressure…

  • Glass Joints


    Pyrex Standard Taper Connecting Tubes (5738E14) Arms are approximately 75° apart Equipped with inner Standard Taper joints that are both 24/40 Often used as a still head adapter Still Head Standard Taper Connecting Tubes (5738H82 and L18) Sidearm is at an angle…

  • Vigreux Distillation Columns

    DWK Life Sciences (Kimble)

    Vigreux distilling column with indentations over the entire length for improved vapor-liquid contact. KIMAX® column has a Standard Taper outer joint at the top and a Standard Taper inner joint at the bottom Manufactured from 33 expansion, low extractable borosilicate glass conforming…

  • Hollow fritted cylinder at the end of an 8mm O.D. tube. Cylinder is approximately 12mm O.D. x 20mm long. Overall length is approximately 10 inches.

  • Drying Towers


    Cylindrical shaped drying tower has a 34/28 ground glass stopper. The stopper has a hole coinciding with a serrated hose connection sealed in the outer portion of the stopper neck and a second hose connection near the base of the cylinder. A hex base is sealed to the bottom of the tower for added stability.

  • Transition adapter to convert a spherical ball or socket 2 joint to a standard taper inner joint.

  • Trap is placed between the vapor tube and the evaporation flask. This design prevent possible contamination in the event of bumping. With upper outer and lower inner standard taper joints.

  • Adapter has a Nylon compression cap and a Viton o-ring to form a vacumm tight seal. Cap accommodates 5.0 - 7.5mm O.D. thermometer or gas inlet tube. To use it as a syringe port, simply replace the o-ring with a PTFE-lined septum. Supplied with one Nylon cap and one Viton o-ring.

  • Adapter has a #7 or #15 Chem-Thread at the top for vacuum tight seal of plain stem thermo-meters or any other tube having an O.D. between 4 and 7mm. Supplied complete with a Celcon® compression cap and Viton o-ring.

  • Jacketed distilling column has indentations on the inner tube to support packing material. The jacket allows the column to be used as a condenser. Column has a top outer and lower inner standard taper joint. All sizes have an I.D. of approximately 10mm.

  • Cylindrical tube with a centered, sealed in fritted disc, used to construct special apparatus.

  • PTFE Adapter

    Ace Glass

    PTFE adapter from one standard taper joint size to another.

  • Reaction Vessel constructed of borosilicate glass to accommodate the 7854, 7856 or 7857 Immersion Wells. With one 14/20 angled joint for sparger tube, one 24/40 vertical joint for condenser and one #7 Ace-Thred side arm for thermometer. Center joint is 60/40. Bottom of reactor is flat to allow use…

  • Sweep elbow available in 22.5, 45, 60,and 90 degree angles.

  • Glass Stirring Rod

    United Scientific Supplies

    Soft Glass Stirring Rod, both ends round.

  • Porous fused quartz discs. Porosity sizes are as listed and differ from porosities of borosilicate discs.

  • Peptide Synthesis Vessel, Solid Phase, Synthware, Capacity: Available in sizes ranging from 10-50mL, Frit Porosity: Coarse or Medium, Frit Diameter: Available in sizes ranging from 15-25mm, GL Thread: 14 or 25 available, Arm OD: 8mm, Supplied with a PTFE lined cap and straight bore PTFE stopcock…

  • Dean-Stark receiver used for determining the water content of various materials. Can be used with ASTM Method D-95 along with similar ASTM methods. The 10mL size has subdivisions of 0.1 from 0 to 2mL, and 0.2 from 2 to 10mL. The 25mL size has subdivisions of 0.1 from 0 to 2mL and 0.2 from 2 to 25mL.

  • Glass mosquito feeder, Similar to CG-1835, but with a larger feeding surface. Mosquito feeding area is 50mm diameter. The outer chamber is for circulating 37°C water and an inner chamber into which the blood is injected. Parafilm™ is stretched over the lower portion of the inner chamber.…

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