This category covers reusable glass apparatus for teaching, research and quality control labs. It includes test tubes in light-wall, rimless, side-arm and screw-cap styles (bakelite caps with rubber liners), graduated glass centrifuge tubes with stoppers or screw caps, crystallizing dishes, glass Petri dishes, evaporating basins, calibrated pycnometers, 300 mL B.O.D. bottles, and ground-joint pieces such as Claisen, vacuum, reducing and expansion adapters and stoppers. Larger setups include Soxhlet extraction apparatus, Kjeldahl distillation sets, water-jacketed flasks, distillation apparatus and organic chemistry glassware kits, plus porcelain and plastic spot plates.

Check the glass type first: borosilicate handles heating and temperature changes far better than soda glass. Match ground-joint sizes exactly, such as 24/40 or 29/42, so adapters, stoppers and flasks fit. Compare capacity, dimensions, wall thickness, graduation or calibration, closure type and pack quantity, and confirm the speed rating before using glass tubes in a centrifuge.

Reusable Glassware: common questions

What is a crystallizing dish used for?

A crystallizing dish is a shallow, flat-bottomed glass dish with straight sides. It is used to evaporate solutions so crystals can form, and also as a water or ice bath, a cover dish, or a container for holding small items. Borosilicate dishes can be heated gently, and versions with a spout make pouring easier.

When should I use glass centrifuge tubes instead of plastic?

Glass centrifuge tubes are chosen for organic solvents that attack plastics, for work where plastic leachables could interfere, and when tubes will be cleaned and reused. They can break under high forces, so use them only within the speed or g-force rating given by the maker, with properly fitting adapters or cushions in the rotor.

What does 24/40 mean on lab glassware?

24/40 is a standard taper ground-glass joint size. The first number is the approximate diameter in millimeters at the wide end of the joint, and the second is the length of the ground section in millimeters. Male (cone) and female (socket) joints with the same numbers fit together, and reducing or expansion adapters connect different sizes.

What is the difference between borosilicate and soda-lime glass?

Borosilicate glass has low thermal expansion, so it tolerates heating and rapid temperature changes much better than soda-lime glass and is more resistant to chemical attack. Soda-lime glass costs less and is used for items that are not heated, such as some jars and display pieces. For heating, autoclaving or flame work, choose borosilicate.

Reusable Glassware

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  1. 3L Insct Sys Digital Internal Overhead Bearing ,115V
    Manufacturer: Bellco Glass Inc
    Designed for growing insect cell cultures such as SF9 and SF21 cells. The system comes complete with all accessories needed to grow your insect culture line for expression Includes: –7785-D2005 Digital 5-Position Magnetic Stirrer 115V –1965-03000 Micro-Carrier Spinner Flask Complete 3L –1965-20003R 2-Port Assembly 3L –7808-10004 Gas Blending Stand –7725-00120 Air Supply Pump 115V –7800-10050 Silicone Tubing 1/4” ID (1 per EA )
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    $13.24
  2. Erlenmeyer narrow neck Set of 3-500ml,1000ml,2000ml
    Manufacturer: Eisco Scientific LLC
    Erlenmeyer narrow neck Set of 3-500ml,1000ml,2000ml (1 per EA )
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    was $94.65 Special Price $76.99
  3. Erlenmeyer narrow neck Set of 3-100ml,250ml,500ml
    Manufacturer: Eisco Scientific LLC
    Erlenmeyer narrow neck Set of 3-100ml,250ml,500ml (1 per EA )
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    was $33.36 Special Price $27.14
  4. United Scientific™ Short Path Distillation Head With Coil Condenser, 24/40 Joints
    Manufacturer: United Scientific Supplies
    Short path Distillation Head with 24/40 flask joints and 10/30 thermometer port. Distillation head is manufactured from high quality 3.3 borosilicate glass and features a condenser coil and three ¼” hose nozzles, two for condenser and one for vacuum. (1 per EA )
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    was $141.50 Special Price $119.73
  5. 9 Position Digital Stirr Complete,230V
    Manufacturer: Bellco Glass Inc
    Bell-ennium Magnetic Stirrers are designed for both cell cultures in spinner flasks as well as for general laboratory procedures requiring the use of magnetic stirring equipment. Bell-ennium stirrers offer the laboratory researcher a wide range of capabilities and the latest innovations in stirring technology. Bell-ennium stirrers feature brushless maintenance free DC motors with drive assemblies designed for quiet operation. Stainless steel covers are stamped to show the vessel positions for accurate placement and optimum performance. The Bell-ennium single position low profile chassis measure 10 x 11 x 3 3/8” and are designed to fit side-by-side in Bellco incubators. Units are powered by standard 24V in-line power supplies and are CE compliant. (1 per EA )
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    $3,313.40
  6. Condenser - Liebig, Length of jacket 50cm, total length 70cm., boro. glass
    Manufacturer: Eisco Scientific LLC
    Condenser - Liebig, Length of jacket 50cm, total length 70cm., boro. glass (1 per EA )
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    was $27.75 Special Price $22.56
  7. 100ml Spare Extractor for Soxhlet Apparatus Socket Size 34/35 Cone Size 24/29
    Manufacturer: Eisco Scientific LLC
    100ml Spare Extractor for Soxhlet Apparatus Socket Size 34/35 Cone Size 24/29 (1 per EA )
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    was $47.69 Special Price $38.79
  8. Large Flange Air Stone Sparger,8L
    Manufacturer: Bellco Glass Inc
    Large flange air stone sparger for large flange vessels. Fits through stainless steel head plate fitting. These spargers fit through a 5/16" fitting. 316 l stainless steel Ra 32 finish or better Acrodisc filter assembly, 0.2 micron (1 per EA )
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    $547.08
  9. United Scientific™ Glassware Assortment
    Manufacturer: United Scientific Supplies
    Quality glassware assortment for use in a laboratory. Shipped in a reusable storage box. Kit includes the following items: 2ea. Beaker, Glass, 100ml, 1ea. Beaker, Glass, 250ml, 1ea. Beaker, Glass, 400ml, 2ea. Bottles, 4 oz. w/ Screw Caps, 2ea. Burets, 50m (1 per EA)
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    was $269.00 Special Price $235.36
  10. Stopcock with standard ground joints, 1000-2000ml. 19/26
    Manufacturer: Eisco Scientific LLC
    Stopcock with standard ground joints, 1000-2000ml. 19/26 (1 per EA )
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    was $44.53 Special Price $36.21
  11. Bellco Glass, Inc - Micro-Oven,100V
    Manufacturer: Bellco Glass Inc
    The Bellco Auto-blot Micro Hybridization Oven consists of an incubator with an integral rotisserie device. The rotisserie has the capacity for up to 4 large hybridization bottles or 8 small hybridization bottles. Alternatively, any combination of large or small bottles can be used. This Auto-blot Micro Hybridization Oven features an advanced temperature controller for precise control of oven temperature. Ext: 14”x17”x13” (35x42x32cm) Int: 7”x15”x8” (18x37x20cm) 100v. (1 per EA )
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    $3,631.59
  12. Adapter Receiver with Vacuum Connection - Screw Thread, 24/29
    Manufacturer: Eisco Scientific LLC
    Adapter Receiver with Vacuum Connection - Screw Thread, 24/29 (1 per EA )
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    was $38.75 Special Price $31.51
  13. Beaker-Heavy Wall,1L
    Manufacturer: Bellco Glass Inc
    Manufactured from Type 1 Class A Borosilicate Glass with a low coefficient of expansion. Heavy wall beakers meet astime-960 type 1 specifications for classification design capacity and markings. Features a easy pour spout, white permanent graduations and a large marking square. Specifications: Type 1 Class A Borosilicate Glass Size: 1L Dimensions: 110 x 145mm Case Quantity: 3 (3 per CS )
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    $138.19
  14. Cone - Single, size 10/19
    Manufacturer: Eisco Scientific LLC
    Cone - Single, size 10/19 (1 per EA )
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    was $6.11 Special Price $4.97
  15. Dish Crystallizing, outer dia 50mm, borosilicate glass, flat bottom with spout
    Manufacturer: Eisco Scientific LLC
    Dish Crystallizing, outer dia 50mm, borosilicate glass, flat bottom with spout (1 per EA )
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    was $14.47 Special Price $11.77
  16. Dual Pan Hot Shaker,115V
    Manufacturer: Bellco Glass Inc
    The Bellco Sci-ERA Dual Pan Hot Shaker is a slow speed, large orbit shaker with two independently controlled baths for incubation of electrophoretic gels and filter hybridization media. Stringent temperature control with a sensitivity of +/-0.1oC is useful for many biochemical assays. This Bellco design incorporates a seamless stainless steel lined temperature controlled water bath mounted on a low-profile one inch orbiting platform. The unique chamber design offers simple containment of potential spills. The chamber is completely isolated from electromechanical components. The Sci-ERA Dual Pan Hot Shaker has audible over-temperature alarms and built-in safety features to prevent heater burn-out. An easy-to-use microprocessor controller offers stringent temperature control. (1 per EA )
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    $7,275.46
  17. 3/4 pH/DO Probe Holder Bioreactor
    Manufacturer: Bellco Glass Inc
    3/4 ph/do probe holder bioreactor. 316 l stainless steel Ra 32 finish or better (1 per EA )
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    $579.73
  18. Fermentation Tube, 8x29 mm
    Manufacturer: Bellco Glass Inc
    Disposable gas fermentation tubes are inverted in bottom of larger tube for collection of fermentation gases. Disposible standard flint glass with 1.15mm Wall. 144 per case. Size: 8x29mm (144 per CS )
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    $248.74
  19. Adapter Reduction, Socket size 24/29, Cone size 29/32
    Manufacturer: Eisco Scientific LLC
    Adapter Reduction, Socket size 24/29, Cone size 29/32 (1 per EA )
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    was $17.15 Special Price $13.94
  20. Adapter Receiver Bend, socket 19/26, Cone 19/26
    Manufacturer: Eisco Scientific LLC
    Adapter Receiver Bend, socket 19/26, Cone 19/26 (1 per EA )
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    was $12.07 Special Price $9.82
  21. Glass Impeller Shaft,100-250mL
    Manufacturer: Bellco Glass Inc
    Glass mc impeller shaft 7mm od x 155mm long Type 1 Class A boro for 100- 250ml spinners Glass Impeller Shaft,100-250mL (1 per EA )
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    $8.65
  22. Glass Impeller Shaft, 500mL
    Manufacturer: Bellco Glass Inc
    Glass mc impeller shaft 7mm od x 190mm long Type 1 Class A boro for 500ml spinners Glass Impeller Shaft, 500mL (1 per EA )
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    $8.65
  23. Stainless Steel Tube Rack,20-22mm-48P 6x8 Spacing
    Manufacturer: Bellco Glass Inc
    Will not rust or deteriorate in water baths or co2 atmospheres. Manufactured from 303 stainless steel with electropolish finish. Each opening rack 1 1/16" (26.9mm) Tube size: 25mm Spacing: 6x8 holds 48 tubes Dimensions: 8 1/4" X 6 3/16"X 3 1/2" WIRE SPECIFICATIONS: SIDE & UPRIGHTS: .135"OD WIRE, CROSS WIRE: 0.063" OD WIRE, BTTM MESH: 1/4" Minimum order requirement: 5 each (1 per EA )
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    $96.12
  24. Still Head Plain, with thermometer socket B14, Cone size to fit flask 24/29 & to fit condenser 24/29
    Manufacturer: Eisco Scientific LLC
    Still Head Plain, with thermometer socket B14, Cone size to fit flask 24/29 & to fit condenser 24/29 (1 per EA )
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    was $29.04 Special Price $23.61
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