Buchner Funnel Sintered with Side Arm is a BORO 3.3 borosilicate glass filtration funnel designed for efficient vacuum filtration where fast separation, controlled drainage, and reduced consumable use are required. The integrated sintered glass frit provides a uniform porous filtration surface, removing the need for filter paper and supporting cleaner, more consistent particle retention during precipitate collection, catalyst recovery, solvent clarification, and sample preparation.
The built-in side arm allows direct connection to compatible vacuum tubing, supporting stable suction and helping improve filtration speed and repeatability in busy laboratory workflows. This design is practical for filtration setups where users need a single glass component that combines the funnel body, sintered filtration surface, and vacuum connection point in one assembly.
Manufactured from high quality BORO 3.3 borosilicate glass, this funnel provides strong chemical resistance, thermal stability, low thermal expansion, and clear visibility for routine laboratory use. BORO 3.3 glass is widely selected for laboratory filtration glassware because it supports reliable handling with many common laboratory solvents and reagents when used correctly. Smooth internal glass surfaces help minimise residue retention and support thorough cleaning after filtration runs.
The sintered disc delivers reliable flow under vacuum and retains solids according to the selected porosity grade, making it suitable for fine particulate filtration and challenging precipitate handling. For best practice, users should match frit porosity to particle size, avoid sudden vacuum surges, clean the frit promptly after use to reduce clogging risk, inspect glassware for chips or star cracks before applying vacuum, and secure tubing properly to reduce slip risk.
For material and quality reference, ISO 3585 specifies the properties of borosilicate glass 3.3 used for laboratory glassware, glass plant, pipeline, and fittings. ASTM E438 covers glasses used in laboratory apparatus, including Type I borosilicate glass categories. ISO 9001 may also be used as a general quality management reference where supplier or manufacturer certification is available. These references should only be used as compliance claims where supported by manufacturer documentation and product certification.
For LabChoice Australia customers, Buchner Funnel Sintered with Side Arm provides a practical BORO 3.3 vacuum filtration solution for universities, research laboratories, environmental testing, chemistry teaching, sample preparation, solvent clarification, precipitate collection, and industrial quality control workflows requiring durable borosilicate construction and dependable filtration performance.
