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. Roller Apparatus Base & 1 Deck, 230V Modular - 10 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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    $4,031.14
  2. Digital Roller Apparatus Base & 2 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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    $5,577.08
  3. Flat Bottom Adjustable Hanging Bar Spin, 250mL 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. 250mL. Center cap: 70mm, side arm 32mm. Dimensions: 85 OD x 145 OAH (1 per EA )
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    $186.72
  4. United Scientific™ Condenser, Graham, 300mm, 24/40 Joint
    Manufacturer: United Scientific Supplies
    300mm 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 $75.00 Special Price $60.25
  5. Adapter Ptfe 6.5-8.5 14/20
    Manufacturer: Kimble Chase
    Adapters Inlet Universal PTFE Size 22. [standard taper] Joint 14/20. Accommodation Range (mm) 6.5/8.5. Lower O-Ring Size 013. Upper O-Ring Size 109 Adjustable fitting designed to adapt to a variety of apparatus. (1 per EA)
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    was $136.85 Special Price $134.73
  6. Tube,Test,25X150mm
    Manufacturer: Kimble Chase
    KIMAX Reusable Chemical Test Tube Borosilicate Glass. Kimble N-51A borosilicate glass with sturdy lip and uniform wall thickness for maximum heat transfer and chemical resistance. Sizemm: 25x150. Volume: 55ml. (288 per CS )
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    was $629.91 Special Price $550.06
  7. Tube,Test,Glass Stopper,13X100mm
    Manufacturer: Kimble Chase
    Tubes Test Glass-Stoppered Approx. O.D. (mm) 13. Approx. Length (mm) 100. Capacity to Neck (mL) 7. [standard taper] Stopper Size 9 KIMAX test tube made from KG-33 glass tubing with a top finish to receive a [standard taper] glass stopper and with uniform wall thickness for maximum service. (6 per CS )
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    was $302.19 Special Price $289.26
  8. Filter Stick Only
    Manufacturer: Kimble Chase
    Petrochemical Apparatus Filter Stick with Hooks and Springs Component Parts Filter Stick Only Apparatus used in the determination of oil content and solvent extractables in petroleum waxes. (1 per EA)
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    was $119.64 Special Price $116.51
  9. Jar, Testing,Clr,2Oz,Phen,P/Pv
    Manufacturer: Kimble Chase
    Testing Jar Clear Capacity:2 oz with attached 43-400 black phenolic closure with poly-vinyl liner. (216 per CS )
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    was $721.57 Special Price $508.46
  10. Sparger Fritted 25ml 603
    Manufacturer: Kimble Chase
    Purge and Trap Sparger U-Shaped with EPA Method 603 Dscription Sparger Fritted 25 mL These U-shaped spargers are designed for use on the Tekmar 2000 and 3000 Purge and Trap Concentrators when doing EPA Method 603 and using either an AQUATek 50 or ALS 2050 Vial Autosampler. (1 per EA)
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    was $278.78 Special Price $278.62
  11. 10X75 Boro Mark-M Bz White
    Manufacturer: Kimble Chase
    Prelabeled Culture Tube Disposable. Borosilicate glass. For use in cell washers and water baths as writing on label is permanent. Fused-on white label provides ideal surface for marking. Label size is 19x34.9mm. Tube size is 10x75mm. Volume: 3mL. (1000 per CS )
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    was $179.21 Special Price $146.24
  12. Tube,Dct,Borosilicate,12X75mm
    Manufacturer: Kimble Chase
    KIMAX Culture Tube Disposable. Borosilicate Glass. Features smooth top and bottom to prevent cuts. Annealed to reduce breakage along stress points. Supplied in shrink wrapped trays to eliminate breaking and contamination. Sizemm: 12x75. Volume: 6ml. (1000 per CS )
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    was $141.95 Special Price $64.80
  13. Tube Capillary Gas Delvry
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Threaded Standard Academic MICROFLEX Item O Capillary Gas Delivery Tube 8-425 The 747000 Series MICROFLEX Kits feature versatile threaded chaste connections. They can be assembled rightside up or upside down providing great versatility. (1 per EA)
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    $70.29
  14. Kit Wmson Impvd Ekono-Case
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Thermoplastic Connectors Williamson Improved Standard EKONO-CASE Improved Standard Microscale Kit These MICROFLEX Kits feature the patented chaste connectors and specially tooled glassware components providing great versatility. (1 per EA)
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    was $489.53 Special Price $489.29
  15. Micro Kit Intermediate
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Thermoplastic Connectors Williamson Intermediate Williamson Intermediate Microscale Kit These MICROFLEX Kits feature the patented chaste connectors and specially tooled glassware components providing great versatility. (1 per EA)
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    $262.88
  16. Stirrer Bearing 24/40
    Manufacturer: Kimble Chase
    Stirrers Bearing Precision [standard taper] Joint 24/40. Use With Shaft O.D. (mm) 10. Approx. Overall Length (mm) 120 Stirrer bearing with built-in lubricant reservoir honed for a 10 mm O.D. shaft. Unit has integral [standard taper] joint for use with a variety of flasks. (1 per EA)
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    was $188.09 Special Price $182.44
  17. Valve Size 4 W/O Plug
    Manufacturer: Kimble Chase
    Valves Straight with Tip O-Ring Glass Plug HI-VAC Valve Without Plug Size 4 This valve uses a glass plug (as an alternative to PTFE or CTFE) for applications where the out-gassing plug material is undesireable. All plugs are totally interchangeable with other Hi-Vac counterparts. (1 per EA)
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    was $43.95 Special Price $43.25
  18. Valve Size 4 W/O Plug
    Manufacturer: Kimble Chase
    Valves Right Angle with Tip O-Ring Glass Plug HI-VAC Valve Without Plug Size 4 This valve uses a glass plug (as an alternative to PTFE or CTFE) for applications where the out-gassing plug material is undesireable. All plugs are totally interchangable with other Hi-Vac counterparts. (1 per EA)
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    was $66.13 Special Price $59.18
  19. Valve Hi Vac PTFE Sz 4
    Manufacturer: Kimble Chase
    Valves Straight without Tip O-Ring PTFE Plug HI-VAC Bore Range (mm) 0-4. Approx. Stem O.D. (mm) 9. O-Ring Size Shaft 010 Similar to 826500 but without tip o-ring exposure. For vacuum applications up to 5 x 10-7 Torr. Designed with a precision external thread for fine control. (1 per EA)
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    was $55.32 Special Price $53.46
  20. Valve PTFE T Size 4
    Manufacturer: Kimble Chase
    Valves T without Tip O-Ring PTFE Plug HI-VAC Bore Range (mm) 0-4. Approx. Stem O.D. (mm) 9. O-Ring Size 010 T-valve configuration without tip o-ring exposure allows closure of the bottom arm while vacuum or gases continue to flow through the side arms. O-rings are Viton. (1 per EA)
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    was $74.90 Special Price $72.00
  21. Pickup Adapter 47mm Thf
    Manufacturer: Kimble Chase
    HPLC Adapter Solvent Pickup ULTRA-WARE Pickup Adapter THF-Resistant 47 mm Designed to be used with the Five Valve Four Valve and Filtration caps to provide safe in-line filtration that replaces the traditional pour-and-wait funnel filtration method. (1 per EA)
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    was $711.19 Special Price $684.01
  22. Pickup Adapter 90mm Thf
    Manufacturer: Kimble Chase
    HPLC Cap System Five Valve Recirculation / Filtration THF-Resistant ULTRA-WARE Pickup Adapter THF-Resistant 90 mm Tetrahydrofuran (THF) widely used as a mobile phase for GPC attacks the CTFE valve stems and TFE/propylene o-rings used in the standard Five Valve Cap. (1 per EA)
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    $742.46
  23. Adapter Receiver Bend, socket 19/26, Cone 24/29
    Manufacturer: Eisco Scientific LLC
    Adapter Receiver Bend, socket 19/26, Cone 24/29 (1 per EA )
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    was $19.55 Special Price $15.90
  24. Adapter Multiple - Two necks, Socket 19/26, Cone 34/35
    Manufacturer: Eisco Scientific LLC
    Adapter Multiple - Two necks, Socket 19/26, Cone 34/35 (1 per EA )
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    was $37.69 Special Price $30.66
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