The ProScience Glass Shop (formerly Johns Scientific Inc.) provided the health care, laboratory and scientific community with a wide range of technical glassware from 1928 to 2025. This business was closed 2025 with the retirement of our leader.
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Our products included:
- 10mL Buret Short w/ Squeeze Valve + Clamp
- 10mL Buret with Teflon Stopcock
- 10mL Buret Short w/ Teflon Stopcock
- 25mL Buret with Teflon Stopcock
- 10mL Buret with Squeeze Valve
- 25mL Buret with Squeeze Valve
- Adapter Vacuum Take-off 105 degree Long
- Adapter Vacuum Take-off 105 degree Short
- Distillation Adapter 75 degree Top
- Distillation Adapter
- Rotary Evaporator Bump Trap
- Round Bottom Flasks w/ Std Taper Joints
- Chromotography Column
- Chromotography Column w/ Std Taper Joint
- Liebig Condenser
- Graham Condenser
- Claisen Adapter
- Vigreux Distilling Column
- Soxhlet Extraction Apparatus
- Round Bottom 3-Neck Flasks Vert. Necks
- Round Bottom 3-Neck Flasks 20 Deg. Angled
- Addition Funnel with Teflon Stopcock
- Squibb Separatory Funnel
- Vacuum Trap with Standard Joints
- STA-PUT Velocity Sedimentation Cell Separator (see separate page)
- Specialty Glassware available direct or through Life Science (see separate page): Automatic Burets, Chromatography Columns, Flasks, Vacuum Traps, Crucibles, Evaporating Dishes, Watch Glass, Glass Weighing Funnels, Separatory Funnels, Soxhlet Extraction Apparatus and more!
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The Durex line includes the following products:
- Flasks with Standard Taper Joints
- Vacuum Flask, Traps and Condensers
- Tissue Grinders
- Distillation Apparatus
- Extraction Apparatus
- Separatory Funnels
- Chromatography Columns
- Glass Burets
Our Durex brand Burets and Chromatography Columns were widely distributed.
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| Custom Glassware |
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| 1000ml 3 neck Round Bottom Boiling Flask |
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| Custom Chromatography Columns with Reservoir |
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| Micro Distillation Apparatus |
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