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. Stainless Steel Overhead Drive Impeller Assembly 6L Full Width
    Manufacturer: Bellco Glass Inc
    Manufactured from 316l stainless steel for standard bioreactor vessels. Use with over head drive motors. PADDLE L X W (IN): 3 X 6 3/4". (1 per EA )
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    $660.58
  2. Stainless Steel Hi-Torq Overhead Drive Impeller, 8L-SW Short Width
    Manufacturer: Bellco Glass Inc
    Hi-torq SST OHD impeller assembly - short width Size:8l For hi-torq motor & cap assembly (7774-40115/40230 & 7764-74000) Similar to 1964-60108 but to accept 1/2" shaft from 7764-74000 cap assembly Material: 316 SST with electropolish finish Paddle size: 3" tall x 6" wide (1 per EA )
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    $673.84
  3. Micro Carrier Spnr Flask Complete,8L
    Manufacturer: Bellco Glass Inc
    Promotes optimal growth of suspension and micro-carrier culture. Impeller height adjust through compression fitting center cap. The indented bottom prevents accumulation of micro-carrier beads under impeller. Size: 8l Center Cap:100mm Sidearm cap: 45mm OD X OAH:237 X 430 (1 per EA )
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    $1,078.36
  4. Stainless Steel 2-Port Assembly, 36L For Angled Sidearms
    Manufacturer: Bellco Glass Inc
    All port assemblies are manufactured from 316l stainless steel and have an electropolish finish. 2- port assemblies have siphon and vent tubes. 3-port assemblies have siphon, fill tube and vent tubes. All port assemblies include a 45mm blue polypropylene cap. (1 per EA )
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    $411.93
  5. Stainless Steel Fitting /Cap, 11mm
    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: 11mm Stainless steel fitting w/cap 11mm (1 per EA )
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    $213.11
  6. Internal Overhead Bearing w/ Micro Carrier Flask, 1L
    Manufacturer: Bellco Glass Inc
    Internal impeller decreases risk of contamination. Impeller has an adjustable shaft to align paddle. The large paddle promotes increased oxygenation. Cap size: 100mm Flask size: 1l Dimensions: 135 x 250mm Sidearm cap: 45mm (1 per EA )
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    $1,021.53
  7. Flat Bottom Adjustable Hanging Bar Spin Complete,250mL
    Manufacturer: Bellco Glass Inc
    • Designed for the efficient growth of suspension cells at low speeds • Flask Specifications: o 250 mL flat bottom, Type 1 Class A Borosilicate o Dimensions: 85mm OD x 145mm OAH o Two 32mm Sidearms angled 55º offset center o One 70mm Screw thread center neck o Graduations: 50mL to 250mL, every 25mL o Includes two 32mm blue PP screw caps and pouring rings • Impeller Assembly Specifications: o Consists of PTFE coated magnet and white Teflon magnet holder • Glass Shaft Specifications: o Type 1 Class A Borosilicate o Dimensions: 7mm OD x 155mm long • Cap Assembly Specifications: o Consists of one 70mm blue PP screw cap with 16.2 mm hole for black compression fitting, 70mm white silicone liner with 15.8mm hole, 7mm black compression fitting (1 per EA )
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    $396.94
  8. Centrifuge Bottle,590ml
    Manufacturer: Bellco Glass Inc
    Manufactured from type 1 class a Borosilicate glass. Supplied with a 38-400 black phenolic rubber lined screw cap. Dimensions: 96x173mm Size: 590ml (4 per CS )
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    $392.86
  9. Beaker-Heavy Wall,250mL
    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: 250mL Dimensions: 70 x 87mm Case Quantity: 12 (12 per CS )
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    $252.69
  10. Roller Apparatus Base & 8 Decks, 115V Modular - 45 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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    $10,388.86
  11. Sci/ERA 10 Deck, 230V
    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 digital display. All Position Drives are for use with plastic roller bottles to prevent slipping of the light-weight bottles. Roller Shaft Construction: Non-transferring chemical-resistant rubber rollers with key-shape. Clearance between Decks for Bottle Placement: 134 mm. Construction Material: Aluminum, enamel finish. Usable Roller Length: 51 cm. Brushless motor with controller for smooth operation and no maintenance. Easy-to-remove roller bar assembly (tool provided). Digital LCD display. Locking speed control knob. All position drives. Accepts all Bellco Roller Bottles (glass or plastic* in 110mm or 120mm diameter). Battery backup provides 18 hour service (typical at 2 RPM). Battery backup includes both audible and visual indicators. Motion Alarm (1 per EA )
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    $15,385.90
  12. Bench Top Roller Apparatus,230V-2 P BTBII - Base only
    Manufacturer: Bellco Glass Inc
    The Bellco Bench top Modular Roller Apparatus is a variable speed two bottle roller apparatus (expandable to six bottles) used for the purpose of producing animal cells or cell products. This small sized unit is ideal for experimental and pilot-scale cell culture. The unit features a heavy-duty DC motor and solid-state electronics for reliable operation. The unit includes All-Position Drive belts so that every roller rotates, thus preventing slippage of light-weight plastic bottles. Bellco’s unique hex-shaped shafts prevent roller slippage and produce positive drive. (1 per EA )
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    $1,637.62
  13. Bench Top Modular Deck Only, 2 Position
    Manufacturer: Bellco Glass Inc
    Deck only for bench-top modular roller apparatus 7632-00115 & 7632-00230. 2 position Deck to deck spacing: 7" (1 per EA )
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    $580.31
  14. HTS Accessory Tray,12x12 For Microplates
    Manufacturer: Bellco Glass Inc
    HTS Accessory Tray,12" x 12" for Micro-plates. Dimensions: 30 x 30cm Holds 24 micro-plates (1 per EA )
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    $373.03
  15. Bellco Glass, Inc -High Speed Vertical Lift Impeller-5L Complete
    Manufacturer: Bellco Glass Inc
    H/S Vertical Lift Impeller-5L Complete. Consists Of: 7764-75008 & 7764-76005. Dimensions: (Shaft); 5/8"OD X 14" Long., (Disk); 3" OD. 316L Sst (1 per EA )
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    $1,502.05
  16. Bellco Glass, Inc -High Speed Vertical Lift Impeller-15L Complete
    Manufacturer: Bellco Glass Inc
    H/S Vertical Lift Impeller-15L Complete. Consist Of; 7764-75015 & 7764-76015. Dimensions: (Shaft); 5/8"OD X 20 3/4" Long, (Disk); 3 3/4" OD. 316L Sst (1 per EA )
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    $1,580.61
  17. Triple Addition Assembly 45mm Universal
    Manufacturer: Bellco Glass Inc
    Triple Addition Assembly. For GL45 sidearms. Manufactured from 316l stainless steel with electropolish finish ra 32 or better inside and out. Supply with PP blue Open top s/cap & white silicone liner. All tubes: 1/4" OD x 4 1/4" long. Inseration Length: 3 3/32". Application: Individual ports for liquid additions or redundant vent/overlay. Vertical Side Arm vessels for acid, base, antifoam, media & other additions. (1 per EA )
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    $162.69
  18. Flat Bottom Adjustable Hanging Bar Spin,50mL No Ctr Cap
    Manufacturer: Bellco Glass Inc
    Adjustable Hanging Bar Spinner Flask without Bottom Dimple PTFE impeller assembly rides on glass bearing for friction free operation. 25 & 50mL have black phenolic rubberlined center and sidearm caps. 100mL-300mL have polypropylene caps, silicone gasket and pouring rings accumulation of microcarrier beads under impeller. 50mL. Center cap: 51mm, side arm 18mm. Dimensions: 55 OD x 110 OAH (1 per EA )
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    $151.60
  19. Coldfinger Assembly 3L
    Manufacturer: Bellco Glass Inc
    Used to generate a localized cold surface on the exterior of the finger. Commonly used for sublimation, and can also be used in re-flux or distillation operations. 3L. (1 per EA )
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    $1,156.68
  20. 3 Port Stainless Steel Assembly 15L For Vertical Overhead Drive Vessels
    Manufacturer: Bellco Glass Inc
    Ideal for use with over head drive vessels. Manufactured from 316l electropolished stainless steel with 32ra finish or better. 1-siphon tube 15 5/8" long 1-fill tube 2 17/64" long 1-vent tube 1" long. 45mm 3-PORT ASSY FOR 1964 - STYLE OHD VESSEL, 8 & 15L. SUPPLY 45mM S/CAP (A523-599) & WHITE SILICONE LINER (A523-600). LENGTHS ARE MEASURED FROM TOP OF S/A TO BTTM OF TUBE (1 per EA )
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    $355.92
  21. Low Profile 3-Port Harvest Assembly, 6L For VSA Vessels
    Manufacturer: Bellco Glass Inc
    Material: 316l SST with electropolish finish, ra 32 or better, inside & out Dimensions: harvest tube (3/8" od) - 1" above slug, 10 9/32" insertion length Addition tube (1/4"od) - 1" above slug, 2 21/64" below Vent tube (1/4" od) - 1" above slug, .975" below Supply with 45mm PP blue open top screw cap & white silicone gasket (1 per EA )
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    $393.75
  22. Micro Carrier Spnr Flask Complete,6L
    Manufacturer: Bellco Glass Inc
    Promotes optimal growth of suspension and micro-carrier culture. Impeller height adjust through compression fitting center cap. The indented bottom prevents accumulation of micro-carrier beads under impeller. Size: 6l Center Cap:100mm Sidearm cap: 45mm OD X OAH:204 X 410 (1 per EA )
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    $868.93
  23. Internal Overhead Bearing Impeller Assembly, 36L
    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. Cap size: 100mm Flask size: 36 PADDLE; L X W:9.5 X 6 IN (1 per EA )
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    $935.23
  24. Digital Bottom Roller Apparatus 10 Deck,100-115V 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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    $11,667.35
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