Filtering Funnels

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  • Buchner Funnel Filter Paper Disks

    Bel-Art - SP Scienceware

    Buchner funnels available with medium porosity (45-90 microns) or coarse porosity (90-130 microns). Fixed and removable filter plates are 6.4mm (1/4") thick high density polyethylene with a non-porous circumference to better fasten filter paper to the plate. Buchner funnels are also available…

  • for 47 mm filters with glass support, NS 40/35 joints, 4 L flask (included) Funnel volume is 1000 mL General description Same as Z290432 but with NS 40/35 jont (male on flask, female on funnel support) instead of rubber stopper. Vacuum filtration apparatus for HPLC solvent…

  • Long and short stem funnels are ideal for filtering Molded to an accurate 60° angle for ease in fitting filter paper Beaded rim for mechanical strength Long stem, which is constructed of heavy wall tubing Molded to an exact 58° angle , which increases filtering speed High resistance to…

  • For use without filter paper Offered in nine sizes and three porosities Pore sizes 40 to 60 µm = C, 10 to 15 µm = M and 4 to 6 µm = F With square-cut, fire-polished rim These funnels are especially useful where filter paper would be attacked by the material…

  • Polypropylene Buchner Funnels

    Thermo Scientific Nalgene

    Lightweight and durable Bottom and top can be separated for easier cleaning Autoclavable

  • Vacuum Filter Holder Set, 47mm

    United Scientific Supplies

    This all-glass filter holder is used in particulate contamination analysis for filtering aqeuous, organic, or corrosive liquids. It is also recommended for HPLC solvent filtration. Complete set includes a borosilicate glass funnel, anodized aluminum spring clamp, vacuum base with sintered disc,…

  • BUCHNER FUNNEL

    United Scientific Supplies

    Good quality glazed porcelain. Acid and alkali resistant. Sold as eaches.

  • Clamp Style Polysulfone Filter Funnels

    Thermo Scientific Nalgene

    Durable, break-resistant, non-toxic polysulfone exhibits low protein- binding and is easy to clean Same funnel design as glass funnels without breakage problems Upper reservoir is graduated in 25 mL increments from 100 to 250 mL Unique fit of upper and funnel sections ensures no…

  • Scienceware® Buchner Funnels, Two-Piece

    Bel-Art - SP Scienceware

    Easy-to-clean two-piece, polypropylene plastic Buchner funnels include a molded in perforated plate. Lightweight; not top-heavy Steam autoclavable at 121°C (250°F) Use with Vac-Ring Filter Seal (1189N06) for quick filter setup

  • Plastic Funnels, Polypropylene

    Thermo Scientific Nalgene

    For standard filter papers Body is at 60° angle with internal ribs at 58° for rapid filtration Outside ribbing eliminates air lock Autoclavable

  • Sterile Disposable Filter Funnel Unit

    Thermo Scientific Nalgene

    Analytical Filter Funnel, Polystyrene; Cellulose Nitrate (C.N.) Membrane CONTAINS FILTERS ONLY Nalge 140 47 mm diameter filter with grid Ideal for use with filtering flasks or manifolds Convenient snap-away design with removable membrane; funnel marked at 100 mL …

  • Short stem, addition funnel with ptfe stopcock plug included. 24/40 top and bottom joints. Stopper (8250-12) is not included.

  • Clear polysulfone funnel with imprinted graduations. Magnetic coupling of funnel to stem for fast filter changes. Used with 47 mm membrane filters for coliform testing and prefiltration of many fluids. Fits standard manifold systems with #8 rubber stopper connections. Capacity 300 mL (10 oz).…

  • Inside flutings for rapid filtration For use in flasks or test tubes without filter rack

  • Designed to help prevent contamination during use Recommended for routine filtration analysis of corrosive liquids and the removal of particulates from HPLC solvents Replaceable supports available Filter size: 47 mm; 3/8” hose connection A ground joint connection eliminates…

  • Scienceware® Heavy-Duty Funnels

    Bel-Art - SP Scienceware

    Durable, versatile, assorted sizes Sturdy, polypropylene funnels Ridges help prevent vapor lock Recommended highly for continuous labwork Steam autoclavable at 121°C (250°F)

  • Short Stem Funnels, 58° Angle

    DWK Life Sciences (Kimble)

    KIMAX funnel constructed with heavy uniform walls and molded rims and fire polished stems to give a long service life. Funnels have a high resistance to chemical attack and mechanical and thermal shock. The 58° funnel angle is a Kimble exclusive, formed to an exact angle for rapid filtration. The…

  • Simple design, reliable dispense Easy to load — Simple loading and unloading of refill pack at any point during use. No jamming — Guide plates assist loading and keep refill web in alignment during use to avoid jamming of the instrument. Soft touch keypad —…

  • Filter Adapter Set, Neoprene

    United Scientific Supplies

    Set of seven neoprene adapter cones designed to fit Buchnew and fritter glass funnels, porcelain filters without headpieces, and for reverse flow cleaning for filter crucibles. Adapters can be used to support funnels, Gooch crucibles, filter tubes and other apparatus in filtration…

  • Reusable Filter Holders with Receiver

    Thermo Scientific Nalgene

    Polysulfone filter funnels For 47 mm diameter membrane filters Eliminates the need for a manifold and/or breakable glass vacuum flask Particularly useful for field work Receiver is graduated Non-sterile Autoclavable Two side-arms allow connection to vacuum line; also…

  • Flast flowing with Fritware® Porous Plates HDPE with sealed-in, polyethylene filter plate of coarse porosity (90-130 microns) Offer good retention and fast flow under vacuum Can be used with or without filter paper Use below 52°C (125°F)

  • Long Stem Glass Funnels

    United Scientific Supplies

    Glass Long Stem Funnels, 60 degree angle, Stem length is 150mm.

  • Unique Magnetic Seal Allows Easy, One-Handed Vacuum Filtration of Liquids No-leak magnetic seal allows one-hand operation.   Polyphenylsulfone construction is compatible with anti-foaming agents and many other solvents. Convenient.  150 mL size allows for easy fit into small…

  • Porcelain Buchner Funnels

    United Scientific Supplies

    Buchner funnel includes fixed perforated plate. Funnels are glazed on inner and outer surfaces except for the rim. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of…

  • Analytical Test Filter Funnels

    Thermo Scientific Nalgene

    Economical, disposable and sterile Features a graduated, “peel-away” upper, which easily separates from the collar to allow quick retrieval of the cellulose nitrate membrane for microbiological analysis 250 mL, polypropylene upper with 47 mm, 0.2 or 0.45 µm membrane The 0.45 µm…

  • Filter Apparatus

    Chemglass

    Useful for direct filtration applications of small volumes under vacuum. Complete apparatus consists of a Buchner funnel with 14/20 top outer and lower inner joints, and a 50mL Erlenmeyer flask having a 14/20 outer joint.

  • Scienceware® Buchner Funnel Trowel

    Bel-Art - SP Scienceware

    Specifically designed for use with 18, 24 and 36" Buchner Funnels, apply slight downward pressure and ‘sweep’ the trowel along the surface of the precipitate to quickly and efficiently smooth fissures appearing during the filtration process. Large surface area smooths fissures faster …

  • High Quality, Corrosion-Resistant Funnel for Rapid Batch Filtration Stainless steel construction offers excellent chemical resistance.   Convenient hand tightening makes filter changing easy. Pall Laboratory products are designed for laboratory applications only. This…

  • Funnel has a sealed-in glass fritted disc of the listed porosity. Useful wherever filter paper or membranes cannot withstand the chemical attack of the filtrate. Constructed with heavy wall stems and the top of the funnel is beaded for additional strength. Not recommended for use where pressure…

  • Analytical funnels made of autoclavable polypropylene. These funnels have long, narrow bore that works best for liquids.

  • Urbanti High-Speed Filter Funnels

    Bel-Art - SP Scienceware

    Unsurpassed for non-vacuum, high-speed filtration, these clear funnels have internal helicoid ribs to increase the filtration speed. Vertical outer ribs prevent airlock Autoclavable polymethylpentene plastic; unaffected by corrosive liquids Heat resistant to 177ºC (350ºF)

  • Filtration Assemblies & Flask

    DWK Life Sciences (Kimble)

    Designed to handle liquids for analysis of particulate or microbiological contamination; funnels are graduated for accuracy Choose the Ultra-Ware microfiltration assembly that best fits your application Fritted Glass Support, 25 mm (4588A01) Used for general filtration.…

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