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Top rated lab addition funnels
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Best overall CorningCorning PYREX Heavy Wall Pressure-Equalizing Addition Funnel
Standard choice for professional labs featuring heavy wall borosilicate glass that resists thermal shock and breakage during pressure-equalized liquid additions.
- Excellent thermal shock resistance
- Reliable PTFE stopcock
- Heavy wall durability
- Higher price point
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Best for solids ChemglassChemglass Powder Addition Funnel with PTFE Stopcock
Designed with a wider bore and larger stem opening to facilitate the clog-free addition of solid reagents into reaction vessels.
- Wide bore prevents clogging
- Chemically resistant PTFE stopcock
- Easy to clean
- Not ideal for precise liquid measuring
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Best general laboratory use KimbleKimble Chase Kontes Addition Funnel
A reliable and accurate standard wall funnel suitable for a wide range of organic synthesis applications where pressure equalization is required.
- Accurate volume graduations
- Precision ground joints
- Durable construction
- Stopcock grease may be needed
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Premium choice ACE GlassAce Glass Pressure-Equalizing Dropping Funnel
Hand-blown precision glassware offering superior clarity and exacting tolerances for high-performance synthetic chemistry.
- Superior craftsmanship
- Excellent seal integrity
- High chemical resistance
- Premium cost
- Longer lead times
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Best budget pick United ScientificUnited Scientific Supplies Addition Funnel
An economical option suitable for educational settings or routine tasks where heavy-duty durability is not the primary concern.
- Very affordable
- Functional design
- Lightweight
- Thinner glass walls
- Less precise graduations
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Most consistent BEIDUOYANGVWR International Heavy Wall Addition Funnel
Manufactured to strict specifications ensuring uniform quality and fit for general laboratory procedures requiring controlled reagent addition.
- Consistent quality control
- Robust sealing
- Wide availability
- Generic brand aesthetics