Funnels and Filtration
Thermo Scientific™ Nalgene™ Reusable Bottle Top Filters
Combine the convenience of a bottle top filter with the savings of a reusable bottle top filter. Screw securely onto glass media bottles with 33 or 45mm neck sizes.
Karl Hecht™ Assistent™ Glass Weighing Boats
For easy transfer of liquids and powders in the laboratory. Karl Hecht™ Assistent™ Glass Weighing Boats are manufactured from durable DURAN™ borosilicate 3.3 glass.
Fisherbrand™ Borosilicate Glass Weighing Funnels
Introduce powder via the tubular stem. Fisherbrand™ Borosilicate Glass Weighing Funnels are ideal for weighing small quantities of powder.
Fisherbrand™ Glass Conical Separating Funnel with PTFE Stopcock
Manufactured from Borosilicate Glass and ISO 4800 Certified. Fisherbrand™ Glass Conical Separating Funnel with PTFE Stopcock is supplied with a glass and plastic stopper. Available with interchangeable glass or PTFE stopcock.
DWK Life Sciences DURAN™ Filter Crucible
Filter crucibles are filters that are used like filter chutes in solid-liquid separation by means of vacuum. They are particularly suitable for precipitation, which must be dried to a constant weight.
Haldenwanger™ Porcelain Buchner Funnel
Use these funnels for a variety of filtration applications. Haldenwanger™ Porcelain Buchner Funnels are constructed from optimized laboratory porcelain.
Pyrex™ Hirsch Pattern Vacuum Filtration Funnel with Sintered Glass Disc
Manufactured from Pyrex™ borosilicate glass for high resistance to chemical corrosion. Pyrex™ Hirsch Pattern Vacuum Filtration Funnel with Sintered Glass Disc is ideal for filtering semi-micro quanitities of material and eliminates the need for filter papers.
Thermo Scientific™ Nalgene™ Single Use Analytical Filter Funnels
Perform microbiological QC testing and analysis of water, food/beverage, raw material and finished product with these economical sterile disposable funnels.
Thermo Scientific™ Filtration Hardware, Accessories, and Spare Parts
Thermo Scientific™ Nalgene™ filtration hardware and accessories can be used in a wide range of applications and in conjunction with our various lines of filtration devices.
Fisherbrand™ Borosillicate Glass Funnel
Plain glass funnel manufactured from borosilicate glass. Fisherbrand™ Borosilicate Glass Funnel is ideal for use with funneling liquids in laboratory applications.
Sampling Systems™ Stainless Powder Funnel
Sampling Systems™ Stainless Powder Funnel are made from high quality Stainless Steel and suitable for hygienic and pharmaceutical applications.
Quickfit™ Borosilicate Glass Büchner Vacuum Filtration Funnels with Glass Sintered Disc
Useful where conventional filter papers would be destroyed by acids and alkalis
Sampling Systems™ SteriWare™ Disposable Liquid Funnel
Ideal for laboratories, pharmaceutical environments, cleanrooms and chemical manufactruing. Sampling Systems™ SteriWare™ Disposable Liquid Funnel comes individually bagged after being moulded and packed in a Class 100,000 Cleanroom.
Pyrex™ 60mm Diameter Glass Büchner Filter Funnel
Manufactured from chemically resistant Pyrex™ borosilicate glass. Pyrex™ 60mm Glass Büchner Filter Funnnel includes an integral sintered glass disc also constructed with Pyrex™ glass. High resistance to most corrosive agents, and does not require filter papers.
Pyrex™ Funnel with Sintered Glass Disc
Manufactured from Pyrex™ Borosilicate Glass. Pyrex™ Funnel with Sintered Glass Disc is used for the filtration of solutions. Resistant to most corrosive agents, and eliminates the need for filter paper.
Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels, with Glass Plug
For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels, with Glass Plug are manufactured from durable DURAN™ borosilicate glass.
Bel-Art™ SP Scienceware™ Buchner Table-Top Funnels, 18 in. (45.7cm) I.D.
Filter large volumes quickly with a polyethylene plastic Table-Top Buchner Funnel.
Thermo Scientific™ Nalgene™ Reusable Filter Units
Eliminate the need for a manifold or breakable glass vacuum flask. Nalgene Reusable Filter Holders with Receiver are complete, environmentally-friendly systems.
Fisherbrand™ Glass Pear-Shaped Separating Funnel with PTFE Stopcock
Constructed in chemical resistant borosilicate glass. Fisherbrand™ Glass Pear-Shaped Separating Funnel with PTFE Stopcock separates mixtures into immiscible solvents. Available with interchangeable glass or PTFE stopcock, but supplied with a glass and plastic stopper.
Thermo Scientific™ Nalgene™ Reusable Analytical Funnels
Use this filter holder with funnel with any filtering flask or manifold that accepts a suitable rubber stopper with hole.
Brand™ Silberbrand™ Imhoff Sedimentation Cones
Manufactured from borosilicate glass and complies with DIN 12672 standards. BRAND™ Silberbrand™ Imhoff Sedimentation Cones are available with or without stopcock, graduated to 100mL or 1000mL, and include a ring mark at 1000mL. *1000mL graduated version does not include ring mark.
Kartell™ Polypropylene Buchner Funnels
Manufactured from robust, lightweight polypropylene for durability and excellent chemical resistance. Kartell™ Polypropylene Buchner Funnels with an integral filter is ideal for separating solids from liquids in a laboratory.
Thermo Scientific™ Nalgene™ Large HDPE Funnels
Choose a safer alternative to glass with this shatterproof funnel, featuring external and internal ribbing for air release.
Kontes™ Membrane Filtration Glassware from Restek
Used for routine filtration of corrosive liquids and removal of particles from HPLC solvents
Fisherbrand™ PTFE Funnel
Includes a super smooth non-stick internal surface. the PTFE funnel is chemically resistant and inert.
BRAND™ Polypropylene Powder Funnels
Constructed of durable, lightweight polypropylene. Brand™ Polypropylene Powder Funnels are an excellent option for the transfer of samples without flow rate restrictions.
Pyrex™120mm Diameter Glass Büchner Filter Funnel
Manufactured from chemically resistant Pyrex™ glass. Pyrex™ 120mm Diameter Glass Büchner Filter Funnel with integral sintered glass disc is highly resistant to most corrosive reagents and eliminates the need for filter papers.
Funnels and filtration products are familiar items in the laboratory used for filtering, filling, decanting or transferring liquids or powders from one vessel to another. Laboratory funnels are made from glass, plastic (typically HDPE) or occasionally metal. Glass funnels are reusable, autoclavable and generally more heat-resistant, chemical-resistant and more durable than plastic funnels, although they may be prone to increased risk of breakage. Glass funnels can be made from soda-lime glass for general purpose work, or from borosilicate glass for more exacting applications.
What are the different types of funnels?
- General purpose filling funnels for channelling, filling and decanting liquids
- Short stem funnels or powder funnels, used to prevent the stem from clogging when funnelling fine particulates
- Long stem analytical funnels, often used with filter papers
- Funnels with specially fluted interiors for rapid filtration
- Glass Büchner funnels, glass filtering funnels or vacuum filtration funnels, made with an integral sintered glass disc for filtering precipitates or particulates without the need for filter papers. The sintered discs come in a range of pore sizes
- Bottle-tops and filter units, or complete filtration assemblies complete with a receiving vessel
- Pear-shaped or cylindrical separatory funnels (separating funnels) fitted with a stopper and a PTFE or glass stopcock, used in the chemistry laboratory for pouring off layered immiscible liquids
- Weighing funnels or other special purpose funnels
Most types of funnels are manufactured in a range of sizes and dimensions, such as varying top diameters, stem lengths, stem diameters, bowl angles, bowl capacities and overall lengths.