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. Large Flange Air Stone Sparger,15L
    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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    $552.18
  2. Trough Pneumatic, dia 20cm, height 10cm, Soda glass
    Manufacturer: Eisco Scientific LLC
    Trough Pneumatic, dia 20cm, height 10cm, Soda glass (1 per EA )
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    was $42.47 Special Price $34.55
  3. Roller Apparatus Base & 5 Decks, 230V Modular - 30 Pos
    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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    $7,732.45
  4. 3-Port Sparger Assembly W/Frit, 15L For VSA Vessels
    Manufacturer: Bellco Glass Inc
    316-l stainless steel ra32 or better finish 10 micron porosity stainless steel frit for low profile vertical side arm vessels. Frit is removable for cleaning. Comes with 45mm blue polypropylene open top cap and silicone gasket Triple tube configuration With Vent, Fill/Sample And Sparge. (1 per EA )
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    $774.10
  5. Bellco Glass, Inc - 5L Bello Control Systems Flat Bottom System,115V
    Manufacturer: Bellco Glass Inc
    Bellco Control System, Flat Bottom. The Bellco Stainless Steel Shaft Conversion Kit is designed to convert your standard glass shaft to stainless steel on 1967 and 1965 Spinner Flasks. Sizes range from: --100 mL to 36 liters for 1965 spinners --100 to 3000 mL for 1967 spinner flasks Material: --316L Stainless Steel 1965 & 1967 Series Micro-Carrier Spinner Flask 5L BCS Flat Bottom System 115v (1 per EA )
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    $38,308.46
  6. Vertical Disk Impeller 7L For 7L Bioreactor Systems
    Manufacturer: Bellco Glass Inc
    For 7l bioreactor systems - English threads Material: 316l SST with electropolish finish OD: 2 3/4" Requires two (2) ea per vessel (1 per EA )
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    $525.86
  7. Overhead Drive Vessel w/6 Side Arms 8L
    Manufacturer: Bellco Glass Inc
    Manufactured from Type 1 Class A Borosilicate glass. Includes 4 or 6 polypropylene blue screw caps 45mm and pouring rings, also 1 polypropylene blue cap 100mm for the center. Specifications: Material: Type 1 Class A Borosilicate Glass 100mm Center Neck Baffles: 0 Sidearms: 6 OD x OAH: 240 x 430mm (1 per EA )
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    $1,407.80
  8. Bench Top Roller Apparatus,115V-10 Position With All Position Drive
    Manufacturer: Bellco Glass Inc
    The Bellco Digital Bench-top Roller Apparatus holds 10 glass or plastic roller bottles (110 to 120 mm diameter and up to 22.5 cm in length). The unit features a heavy-duty DC motor and solid-state electronics that operate at bottle speeds ranging from 0.3 to 10.0 rpm with the ability to select clockwise or counter clockwise direction. The digital display panel has a 0.55” LED for easy reading and the apparatus has a locking speed knob. 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. Bellco’s unique hex-shaped shafts prevent roller slippage for positive drive. Use of this equipment is limited to conventional laboratory mixing of roller bottles. (1 per EA )
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    $3,356.17
  9. Double Window Roll-In Incubator, 115V
    Manufacturer: Bellco Glass Inc
    Bellco 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 to internally placed appliances such as CPRA, Roller Drums, Magnetic Stirrers, etc. Fans take air from the chamber top, pass it over the 1100 watt heater and re-inject it into the chamber on the bottom back wall. A microprocessor temperature controller and membrane keypad allows simple setting and monitoring of chamber temperature. A safety thermostat is included to prevent over-temperature failures. Shelf brackets are included for mounting of optional shelves. The control panel features indicating lights and dials for automatic control of temperature. (1 per EA )
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    $11,534.67
  10. Plain Top Leighton Tube 19X95mm Short Style
    Manufacturer: Bellco Glass Inc
    Manufactured from type 1 class a Borosilicate glass. Extra long working area yet short overall length promotes convenient handling. Short neck allows easy entry and removal of cover slips. Also can fit bellco self-locking racks. Tube dimensions: 19x95 (36 per CS )
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    $363.16
  11. L-Bubbler Tube w/frit, 8L
    Manufacturer: Bellco Glass Inc
    Sparging accessory for vertical sidearm spinner flasks 316L electropolished SST, 1/4" OD; 10micron porosity frit .040" holes for aeration of fermentation cultures where shear force is less critical. Includes PP cap with 1/4" white compression fitting and white silicone gasket DIMENSIONS: 18 1/2 X 4 4/2" (1 per EA )
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    $477.33
  12. Splash Head Sloping Pear Shape, Cone size to fit flask 24/29, to fit condenser 24/29
    Manufacturer: Eisco Scientific LLC
    Splash Head Sloping Pear Shape, Cone size to fit flask 24/29, to fit condenser 24/29 (1 per EA )
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    was $38.85 Special Price $31.61
  13. Bellco Glass, Inc - Autoblot Tube,44x150mm
    Manufacturer: Bellco Glass Inc
    Manufactured from medium wall Borosilicate Glass Type 1 Class A, with permanent graduations designed for DNA/RNA protocols. Includes high temperature red PBT cap with PTFE faced silicone liner. Replacement cap 5639-90045 (2 per CS )
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    $217.12
  14. Bellco Glass, Inc - Micro-Oven,115V w/4 Position Rotisserie
    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) 115v (1 per EA )
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    $3,394.01
  15. Stainless Steel Hi-Torq Overhead Drive Implr, 15L-SW Short Width
    Manufacturer: Bellco Glass Inc
    Hi-torq SST OHD impeller assembly, short width Size: 15l For hi-torq motor & cap assembly (7774-40115/40230 & 7764-74000) Similar to 1964-60115 but to accept 1/2" shaft from 7764-74000 cap assembly Material: SST 316L Paddle size: 3" tall x 7 1/2" wide (1 per EA )
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    $699.82
  16. Culture Tube Rack,16mm
    Manufacturer: Bellco Glass Inc
    The culture tube rack is designed for roller culture tubes. Manufactured from 303 stainless steel construction. Includes spring clips that prevent tubes from moving in the rack. SST WIRE RACK FOR 38mm OD TUBES, SPACING: 2x6 - HOLDS 12 TUBES, DIMENSIONS: 10" WIDE X 3 1/2" DEEP X 2 7/8" TALL, EACH OPENING IN RACK: 1 9/16" (39.6mm). WIRE SPECIFICATIONS: SIDE & UPRIGHTS: .162"OD WIRE, CROSS WIRE: 0.063" OD WIRE, BTTM MESH: 1/4" Minimum order requirement: 5 each (1 per EA )
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    $311.90
  17. Gas Generator Kipp's 500ml, borosilicate glass
    Manufacturer: Eisco Scientific LLC
    Gas Generator Kipp's 500ml, borosilicate glass (1 per EA )
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    was $278.91 Special Price $226.86
  18. Overhead Drive PTFE Impeller Assembly 6L
    Manufacturer: Bellco Glass Inc
    Ideal use for over head drive vessels. Description: 6L OHD Impeller Assembly Consists of Paddle, Plug, Paddle Holder, and Drive Shaft Paddle [A523-214]: PTFE material, 171.5mm wide x 76.2mm tall x 1.6mm thick Plug [A542-49]: PTFE, 9.5mm OD x 19.1mm long (approx.) Paddle Holder [A542-50]: PTFE, 279.4mm long x 19.1mm OD Drive Shaft [A542-46]: 316L SST, 190.5mm long x 6.4mm OD (approx.) (1 per EA )
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    $269.79
  19. 4-45 Bioreactor Flask Only, 1L
    Manufacturer: Bellco Glass Inc
    The 4-45 bioreactor vessel is manufactured from type 1 class a Borosilicate glass. This vessel has 4 sidearms around 100mm center neck. The stainless steel capseal has 5 ports for insertion of 12mm probes and 1/4" tubes. Flask only. Specifications: Accepts All Standard Fittings And Probes 316L Stainless Steel Cap Seal with compression fittings for probes/tube insertion. 4 sidearms positioned 90° for increased capabilities. Accessories: 1965-11400 Flask Only, 1L 1965-60014 SST Cap seal, 1L, 5 port with IOB 1965-13400 Flask Only, 3L 1965-60034 SST Cap seal, 3L, 5 port with IOB 1965-45200 45mm Plug w/Compression Fitting & Hose Barb. (1 per EA )
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    $467.62
  20. Internal Overhead Bearing w/ Micro Carrier Flask,500mL-70mm
    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: 70mm Flask size: 500ml Dimensions: 110 x 180mm Sidearm cap: 45mm (1 per EA )
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    $663.05
  21. Still Head Plain, with thermometer socket B14, Cone size to fit flask 14/23 & to fit condenser 14/23
    Manufacturer: Eisco Scientific LLC
    Still Head Plain, with thermometer socket B14, Cone size to fit flask 14/23 & to fit condenser 14/23 (1 per EA )
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    was $18.78 Special Price $15.28
  22. Petri Dish, outer dia 15cm, Soda glass
    Manufacturer: Eisco Scientific LLC
    Petri Dish, outer dia 15cm, Soda glass (1 per EA )
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    was $13.58 Special Price $11.05
  23. Still Head Plain, with thermometer socket B14, Cone size to fit flask 19/26 & to fit condenser 19/26
    Manufacturer: Eisco Scientific LLC
    Still Head Plain, with thermometer socket B14, Cone size to fit flask 19/26 & to fit condenser 19/26 (1 per EA )
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    was $20.51 Special Price $16.68
  24. Screw Cap Leighton Tube 16x93mm
    Manufacturer: Bellco Glass Inc
    Manufactured from type 1 class a Borosilicate glass. Includes long skirted screw cap with nontoxic white rubber liner. Extra long working area yet short overall length for convenient handling. The short neck provides easy entry and removal of cover slips. (36 per CS )
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    $425.27
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