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. Adapter Multiple - Three necks, Socket 19/26, Cone 29/32
    Manufacturer: Eisco Scientific LLC
    Adapter Multiple - Three necks, Socket 19/26, Cone 29/32 (1 per EA )
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    was $29.13 Special Price $23.69
  2. Stainless Steel Hi-Torq Overhead Drive Impeller, 8L-FW Full Width
    Manufacturer: Bellco Glass Inc
    Stainless Steel Hi-Torq Over Head Drive Impeller Full Width 8L Specifications: Hi-Torq SST Over Head Drive Impeller Assembly – Full Width Size: 8L . For Hi-Torq Motor & Cap Assembly (7774-40115/40230 & 7764-74000) Similar To 1964-60008 But To Accept 1/2" Shaft From 7764-74000 Cap Assembly Material: 316L SST With Elelctropolish Finish Ra32 Or Better Paddle Size: 3" Tall X 8" Wide (1 per EA )
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    $700.73
  3. Stainless Steel Probe CapSeal, 3L W/PTFE Internal Overhead Bearing , 4 Ports
    Manufacturer: Bellco Glass Inc
    The stainless steel 100mm IOB probe cap seal is manufactured from 316L stainless steel and has a red-silicone sealing gasket with a 100mm blue polypropylene screw cap. The stainless steel probe cap seal has four accessory ports surrounding a centrally located internal impeller assembly. Two of these ports have a white silicone plug inside a threaded cap that acts as a compression fitting for probe insertion. The other ports accept accessories using the same silicone compression plugs and threaded caps. These compression plugs make it easy to adjust the insertion length of probes or straight tubes depending upon the working volume of the bioreactor flask. The stainless steel cap seal, stainless steel PTFE impeller and all fittings are steam autoclavable. (1 per EA )
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    $2,019.85
  4. Bellco Glass, Inc - Mini-Oven,230V w/6 Position Rotisserie
    Manufacturer: Bellco Glass Inc
    The Bellco Auto-blot Mini 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. 14”x17”x13” (35x42x32cm) 230v (1 per EA )
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    $4,793.51
  5. Glass Ball Spinner Only,250mL No Ctr Cap
    Manufacturer: Bellco Glass Inc
    Description: Glass Ball Spinner Flask Only Size: 250mL Material: Type 1 Class A Borosilicate Glass Dimensions: 85mm OD x 140mm Overall Height, 164mm across sidearms Two 32mm Sidearms angled 55° offset center 70mm Screw Thread Center Neck Dimpled Bottom Graduations: 50mL to 250mL, every 25mL – White Ink (Approx Volumes) Supply with: Two 32mm PP Blue Screw Caps & PP Blue Pouring Rings (1 per EA )
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    $155.51
  6. Trypsinizing Flask,125mL
    Manufacturer: Bellco Glass Inc
    Manufactured from type 1 class a Borosilicate glass. Designed with deep side baffles for optimal agitation. Large bottom surface for easy access with Bellco large orifice pipette. Break resistant lip Size: 125mL OD x OAH – 66 x 115mm 3 per case (3 per CS )
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    $150.27
  7. United Scientific™ Condenser, Graham, 400mm, 24/40 Joint
    Manufacturer: United Scientific Supplies
    400mm Graham condenser is designed for use in distillation applications. Constructed of borosilicate glass, this condenser has a coiled inner tube to provide additional surface area for highly efficient cooling. Socket is 24/40 with a screw thread connector. (1 per EA)
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    was $80.50 Special Price $64.66
  8. Low Profile Thermowell Assembly 3L For Low Profile Vessels
    Manufacturer: Bellco Glass Inc
    45mm low profile Thermowell assembly for low profile 3l vessel. Seam welded - electropolish finish 316l stainless steel material ra 32 finish or better Supply with s/cap (a523-599) & white silicone liner (a523-600) 1 - THERMOWELL TUBE: 5/16"OD X .242"ID X 1.0" above x 8 11/32" insertion 1- FILL TUBE: 1/4"OD X .152"ID X 1.0" above x 8 11/32" insertion 1- VENT TUBE: .250"OD X .152"ID X 1.0"LONG (1 per EA )
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    $631.07
  9. Stainless Steel Fitting w/Cap, 1/2in.
    Manufacturer: Bellco Glass Inc
    Probe adapters & compression fittings. Bellco compression fittings are designed using our standard 45 mm blue polypropylene open top caps and white silicone gaskets. A wide variety of fittings are available to allow pH and do monitoring via insertion of these probes into the sidearms of vessels. Bellco probe adapters are designed to allow introduction of threaded probes into vessels through 200 mm stainless steel headplate or a 45 mm vertical sidearm. Probe OD: 1/2" Stainless steel fitting w/ cap ½" (1 per EA )
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    $175.37
  10. United Scientific™ Condenser, Vigreux, 200mm, 24/40 Joint
    Manufacturer: United Scientific Supplies
    200mm Vigreux column with 24/40 joint. A Vigreux column is a type of air condenser where the simple tube has been modified to include an abundance of downward-pointing indentations. This dramatically increases the surface area per unit length of the condenser. (1 per EA)
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    was $51.85 Special Price $39.33
  11. United Scientific™ Condenser, Vigreux, 500mm, 24/40 Joint
    Manufacturer: United Scientific Supplies
    500mm Vigreux column with 24/40 joint. A Vigreux column is a type of air condenser where the simple tube has been modified to include an abundance of downward-pointing indentations. This dramatically increases the surface area per unit length of the condenser. (1 per EA)
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    was $79.00 Special Price $63.42
  12. United Scientific™ Condenser, Graham, 500mm, 24/40 Joint
    Manufacturer: United Scientific Supplies
    500mm Graham condenser is designed for use in distillation applications. Constructed of borosilicate glass, this condenser has a coiled inner tube to provide additional surface area for highly efficient cooling. Socket is 24/40 with a screw thread connector. (1 per EA)
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    was $85.75 Special Price $68.85
  13. Test Tube, light wall rimless, 15ml, 125x16mm, Borosilicate glass, PK/48
    Manufacturer: Eisco Scientific LLC
    Test Tube, light wall rimless, 15ml, 125x16mm, Borosilicate glass, PK/48 (48 per PK )
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    was $44.96 Special Price $36.57
  14. Water Jacketed Flask Complete,100mL
    Manufacturer: Bellco Glass Inc
    For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" ID silicone tubing (Bellco M7965037) Available complete with micro-carrier impeller assembly or as components. Specifications: Jacket Volume (mL): 75ml Cap Size: 70mm Sidearm Cap Size (mm): 18 OD x OAH: 75x160mm (1 per EA )
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    $544.77
  15. Internal Overhead Bearing Impeller Assembly,100-250mL
    Manufacturer: Bellco Glass Inc
    Stainless steel shaft design prevents cell damage and minimizes magnetic decoupling. Sealed internal assembly requires less incubator space. For use with Bellco 1965-series Standard and Water Jacketed Spinner Flasks. Specifications: Cap Size: 70mm Flask Size: 100mL – 250mL Paddle: 2" x 1.5" (1 per EA )
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    $512.37
  16. Digital Bottom Roller Apparatus 8 Deck, 230V W/O Battery Backup
    Manufacturer: Bellco Glass Inc
    The Bellco Process Controlled Bottom Drive Roller Apparatus holds up to 50 (see specifications below) full size glass or plastic roller bottles (110 to 120 mm diameter and up to 510 mm in length). The unit features a brushless DC motor and controller that operate at bottle speeds ranging from 0.3 to 9.0 rpm with the ability to select clockwise or counter clockwise direction. Units feature brushless, maintenance-free DC motors with drive assemblies designed for quiet operation. Four corner bumpers and two locking castors (on the front wheel positions) are also provided. Rollers are easily removed for replacement by using the special tool provided with each unit. All-Position Drive facilitates the use of lightweight plastic roller bottles by ensuring rotation at each bottle station, independent of any load configurations. (1 per EA )
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    $10,358.10
  17. Digital Top Drive 86 Position, 230V-W/BB With Battery Backup
    Manufacturer: Bellco Glass Inc
    The Bellco Top Drive Roller Apparatus has been designed for production of animal cells, viruses and cell products. The unit accommodates 53 bottle positions with over 85,000 cm2 of surface area. Rollers have a key design to eliminate slipping and are easily removable for servicing of bearings. Rollers are formulated from a chemical-resistant non-slip EDPM. All units incorporate a solid state control with a brushless motor and controller, providing smooth operation and easy maintenance. All units feature rubber bumpers, handles, a slotted rear guard, and All Position Drive. The All Position Drive is designed to accommodate plastic roller bottles by preventing the slipping of the light-weight bottles. An optional Motion Alarm System provides audible and visual alarms should the primary fail. (1 per EA )
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    $16,154.19
  18. Double Window Refrigerated Incubator, 230V
    Manufacturer: Bellco Glass Inc
    The Bellco Refrigerated Roll-In Incubators have 40 cubic feet of volume and are designed for use with Bellco’s Cell Production Roller Apparatus (CPRA). The flush-to-floor design allows easy movement of the CPRA in and out of the chamber. Four internal convenience outlets allow simple connection for internally placed appliances such as CPRA, Roller Drums, Magnetic Stirrers, etc. Shelf brackets are included for mounting optional shelves to hold these appliances. Fans take air from the chamber top, pass it over the 1100 watt heater and inject it into the chamber on the bottom back wall. When the refrigeration mode is active, the air is cooled using a thermoelectric cooler. A microprocessor temperature controller and membrane keypad allows simple setting and monitoring of chamber temperature. The control panel contains indicator lights and dials for controlling temperature. A safety thermostat is included to prevent over-temperature failures. The unit is not intended for use with CO2 environments. (1 per EA )
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    $20,253.60
  19. Low Profile 3-Port Assembly 3L For Vertical Low Profile Vessels
    Manufacturer: Bellco Glass Inc
    Low profile 45mm 3-port assembly for vertical low profile3L vessels Seam welded - electropolish 316l stainless steel material All tubes .250"od x .152"id Siphon tube: (long tube) 9 1/2", FILL TUBE: 3 13/16", VENT TUBE:2 5/32". SUPPLY WITH S/CAP (A523-599) & WHITE SILICONE LINER (A523-600) (1 per EA )
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    $274.08
  20. Glass Impeller Shaft, 6-8L Microcarrier
    Manufacturer: Bellco Glass Inc
    Manufactured from type 1 class a Borosilicate glass. For spinner flasks 6l to 8l Dimensions: 9mm x 400mm long (1 per EA )
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    $11,022.48
  21. Glass Ball Spinner Complete,8000mL
    Manufacturer: Bellco Glass Inc
    Description: Glass Ball Spinner Comp, 8000mL Size: 8000mL Material: Type 1 Class A Borosilicate Glass Flask Dimensions: 238mm OD x 420mm OAH, two 45mm sidearms offset at 30º, 100mm center neck Includes two 45mm blue PP screw caps & two 45mm blue PP pouring rings Impeller Assembly: one 100mm blue PP screw cap, 100mm Teflon cap seal, 100mm blue silicone sealing gasket, soft silicone flex tube, glass ball magnet tube, and magnet Specially Formed Bottom Indent Prevents Accumulation under impeller Glass ball houses a magnet for gentle agitation of Micro carrier Beads (1 per EA )
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    $1,028.27
  22. Roller Apparatus Base & 5 Decks, 115V Modular - 30 Position
    Manufacturer: Bellco Glass Inc
    The Bellco Cell Production Roller Apparatus has been designed for production of animal cells, viruses and cell products. Modular units are available from 5 to 45 bottle positions and allow easy expansion with modular add-on decks. Non-modular production units come in 45 and 50 bottle positions with over 80,000 cm2 of surface area. Rollers have a key design to eliminate slipping and are easily removable for servicing of bearings. Rollers are formulated from a chemical-resistant non-slip EDPM. All units feature a solid state control with heavy-duty DC motor and analog tachometer. Non-modular production models feature rubber bumpers, handles and a slotted rear guard. (1 per EA )
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    $7,612.68
  23. Media Storage Bottle,1000mL With 38mm Blk Cap
    Manufacturer: Bellco Glass Inc
    Manufactured from Type1 Class B Borosilicate Glass. Large opening and sloping shoulders facilitate pouring and cleaning. Heavier walls prevent breakage of glass. Media storage bottles have white graduations and a marking area. They are supplied with rubber lined black phenolic screw cap. Specifications: Type 1 Class B Borosilicate Glass Sizes: 1L (33)mm Cap OD x OAH: 103 x 231 Case Quantity: 6 (6 per CS )
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    $157.93
  24. Condenser West 200mm
    Manufacturer: Kimble Chase
    West Condenser 285mm. Condenser is ideal for refluxing and distillation assemblies. Condensate is not held up with this design. #1 hose connections. 19/22 standard taper joint. 200mm jacket length. 66cm2 area. (1 per EA)
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    $153.49
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