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. Round Bottom Canister Only 38x250mm
    Manufacturer: Bellco Glass Inc
    Round Bottom Glass Pipette Canister. Manufactured From Type 1, Class A Borosilicate Glass Components Will Withstand Repeated Dry Or Steam Heat Sterilization Case Qty: 6 (6 per CS )
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    $86.87
  2. Large Flange Z/Z Paddle,8L
    Manufacturer: Bellco Glass Inc
    Manufactured from 316l stainless steel with electropolish finish. Ra 32 finish or better inside and out. Ideal use for cell culture and reduces shear in delicate cell culture. Blade dimension: 5 3/4 x 2 1/2" Shaft oal: 12" MARINE IMPELLER INCLUDES 1/2" SHAFT AND IMPELLER BLADE OMNI AND Z-Z PADDLES ARE ONE PIECE WELDED, 1/4" SHAFT (1 per EA )
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    $137.69
  3. Micro Carrier Spin Flask Only, 100mL W/Dimple Bottom - No Ctr Cap
    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: 100ml Sidearm cap: 32mm (included) (1 per EA )
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    $160.72
  4. Flat Bottom Adjustable Hanging Bar Spin, 100mL 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. 100mL. Center cap: 70mm, side arm 32mm. Dimensions: 69 OD x 110 OAH (1 per EA )
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    $171.74
  5. Adapter Vacuum
    Manufacturer: Kimble Chase
    Adapters Distillation Bent 105 with Vacuum Take-Off [standard taper] Joints 14/20. Hose Connection #1. Approx. Overall Height (mm) 100 With a hose connector and a drip tip. (1 per EA)
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    $89.46
  6. Condenser Liebig
    Manufacturer: Kimble Chase
    Condensers Liebig Medium Length [standard taper] Joints [standard taper] Top Joint 14/20. [standard taper] Bottom Joint 14/20. Approx. Condensing Area (cm2) 34. Hose Connections #1. Approx. Overall Height (mm) 178 Design eliminates bulbs where holdup is likely to occur. (1 per EA)
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    $183.55
  7. Flk Rb 1N 25ml 14/20 Bw
    Manufacturer: Kimble Chase
    KONTES Boiling Flasks Round Bottom 25ml single neck flask with outer [Standard Taper] 14/20 joint. (1 per EA)
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    $39.53
  8. Mfx Kit Standrd Ekono-Case
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Threaded Standard Academic MICROFLEX EKONO-CASE Standard Threaded Microscale Kit 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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    was $894.19 Special Price $889.43
  9. Conn Adapter 13-425 14/20
    Manufacturer: Kimble Chase
    Adapters Connecting Threaded Microscale GPI Thread Size 13-425. [standard taper] Joint 14/20. Approx. Overall Height (mm) 50 [standard taper] inner ground joint to GPI thread. Allows interfacing of [standard taper] outer ground jointed glassware with threaded microscale components. (1 per EA)
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    $51.85
  10. Hickman Molecular Still
    Manufacturer: Kimble Chase
    Microscale Distillation Head Hickman Threaded Alembic Capacity (mL) 1. Flask Vol. (mL) 5. GPI Thread Size 13-425. Approx. Overall Height (mm) 80 Ideally suited for micro distillations especially for separations of high boiling samples. Flask is an integral component. (1 per EA)
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    $111.49
  11. Tube Gc Collection
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Threaded Standard Academic MICROFLEX Item N GC Collection 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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    $38.88
  12. Pickup Adapter Body 47mm
    Manufacturer: Kimble Chase
    HPLC Adapter Solvent Pickup ULTRA-WARE Pickup Adapter Body 47mm 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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    $278.86
  13. Still Head - Screw Thread 24/29 Socket Size
    Manufacturer: Eisco Scientific LLC
    Still Head - Screw Thread 24/29 Socket Size (1 per EA )
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    was $32.05 Special Price $26.07
  14. Leighton Tube Rack
    Manufacturer: Bellco Glass Inc
    For leighton type tissue tubes. Hinged front of rack locks tubes into position. For tube lengths: 83 to 93mm Tubes per rack: 36 (1 per EA )
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    $426.65
  15. Large Flange Flat Bottom Omni Vessel, 15L
    Manufacturer: Bellco Glass Inc
    Heavy walled construction for cell culture and fermentation applications. Heavy duty o-ring flange creates positive seal for stainless steel head-plate. For use with stainless steel head-plate, o-ring, and locking clamp. Use with series 500 controllers or with CellTrol II (no speed) and OHD. 15L flat bottom omni vessel 292 x 440mm. Takes 200mm large flange headplate. (1 per EA )
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    $2,093.38
  16. Stainless Steel 2-Port Assembly, 8L 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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    $304.51
  17. Stainless Steel 2-Port Assembly, 500mL,70mm 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 and gasket.For 500mL flasks. Longest tube length 2.5". (1 per EA )
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    $223.90
  18. Stainless Steel 3-Port Assembly, 8L For Angled Sidearms
    Manufacturer: Bellco Glass Inc
    Size: 8l Seam welded w/ electropolish finish 3-port w/ siphon, fill & vent tubes Includes: 45mm pp cap & silicone gasket Dimensions: 1/4" OD x .152" ID Longest tube: 11" (1 per EA )
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    $354.93
  19. Water Jacketed Micro CarrierSpin Flask Only,8L
    Manufacturer: Bellco Glass Inc
    Flask only. 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): 7500ml Cap Size: 100mm Sidearm Cap Size (mm): 45 OD x OAH: 300x465mm (1 per EA )
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    $3,325.07
  20. Internal Overhead Bearing w/ Micro Carrier Flask, 250mL
    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: 250ml Dimensions: 85 x 140mm Sidearm : 32mm (1 per EA )
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    $639.05
  21. Internal Overhead Bearing w/ Micro Carrier Flask,36L
    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: 36l Dimensions: 410 x 545mm Sidearm cap: 45mm (1 per EA )
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    $2,188.14
  22. Glass Ball Spinner Complete,3000mL
    Manufacturer: Bellco Glass Inc
    Description: Glass Ball Spinner Comp, 3000mL Size: 3000mL Material: Type 1 Class A Borosilicate Glass Flask Dimensions: 165mm OD x 290mm OAH, two 45mm sidearms offset at 53º, 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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    $677.37
  23. Nephelo Flask-Screw Cap38,1L
    Manufacturer: Bellco Glass Inc
    Ideal for growing, storing and mixing or aerobic and anaerobic cultures. Threaded neck and sidearm with clean-out port. Supplied with 38mm and 18mm rubber lined black phenolic screw caps. Specifications: Type 1 Class A Borosilicate Glass Sizes: 1L Includes: 38mm And 18mm Black Phenolic Screw Caps Sidearm Dimensions: 12x130mm m Case Quantity: 4 (4 per CS )
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    $381.34
  24. Digital Bottom Roller Apparatus 9 Deck,100-115V- W/ 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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    $12,311.33
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