Funnels

LABSOLUTE® short-stem funnels are made of high-quality borosilicate glass 3.3. They can also be used to decant and filter hot liquids. LABSOLUTE® funnels with diameter from 35 - 150 mm fit to almost every application. All funnels are manufactured on the basis of ISO 4798.

LABSOLUTE® powder funnels made of transparent PP are unbreakable and very economic. They can be autoclaved at 121 °C. The funnels are suitable to transfer powders, granulated materials and highly viscous liquids. The parallel stem prevents blockage in the funnel. There are also ribs on the inside for fast filtration and ribs on the outside to prevent air blockage.

LABSOLUTE® funnels made of transparent PP are autoclavable at 121 °C. Compared to glass funnels, the shatterproof PP funnels are a good and cheap alternative for almost every filtration of low-viscosity liquids. Standard filter paper fits into the funnels. Ribs on the inside ensure fast filtration. Ribs on the outside avoid air bubbles between the filter paper and the funnel's surface.

LABSOLUTE® funnel holders made of PP are suitable for funnels with a diameter from 25 up to 150 mm. Without adapter they can be used for powder funnels with stem diameters not exceeding 35 mm. A clamp adapter is provided for use with rods from 8 to 12 mm.

With short stem. With a cone angle of 60° offers an optimum fit for all filter sizes. Ideal for easy filling of laboratory bottles and filtration of liquids. High temperature and chemical resistance.

Made of transparent polypropylene. Ideal for easy filling of laboratory bottles and filtration of liquids.

• Good temperature and chemical resistance
• Autoclavable at 121 °C and 1.1 bar for 30 minutes

Clear, virgin polypropylene, autoclavable at 121°C and 1.1 bar for 30 minutes.
The external ribs prevent airlock and back pressure. The internal helicoidal rib prevents filter papers from sticking and increases filtration speed.

These funnel holders are suitable to hold all types of funnels with a diameter up to 150mm. They can also accommodate separating funnels (up to 1000ml). With or without bosshead.

Manufactured from best quality polypropylene. Suitable to hold all types of laboratory funnels with diameters up to 150mm. Two tapered wedges are provided to ensure firm grip on rods having diameters of 10-13mm.

DIN ISO 4798. With short stem. Glass Type I / neutral glass as per USP, EP and JP. Autoclavable.

Transparent. Rapid flow due to a steep 60° angle. Practical handle with loop for hanging. Food-safe product according to regulation (EU) No. 10/2011.

Transparent. For transfer of powdered and granular substances.

• Rapid flow due to a steep 60° angle
• Autoclavable

Transparent. For transfer of powdered and granular substances.

• With short, wide stem
• Rapid flow due to a steep 60° angle
• With tab for hanging
• Food-safe

Nature colours. Food safe. 9.073 470 with stainless steel mesh, 50 mm dia.

With short, wide stem.

Transparent. For safe filling of containers. Food safe.

Transparent. Rapid flow due to a steep 60° angle. Practical handle for hanging. Suitable for filling large amounts of liquids. Food-safe products according to regulation (EU) No. 10/2011.

Sieve for 9251 640 and 9251 645 available (not approved as a food-safe article). Please order separately.

Transparent. For multi-neck flasks, laterally flattened, suitable for standard joint necks of various sizes. Suitable for the filling of liquid or powdered reagents into a reaction flask, partyicularly multi-neck flasks, during a reaction. Food-safe product according to regulation (EU) No. 10/2011.

For rapid filtration. Glass Type I / neutral glass as per USP, EP and JP. Autoclavable.

Glass-clear. For high-speed filtration. The internal helicoid ribs to increase the filtration speed.

• Polymethylpentene plastic
• Vertical outer ribs prevent airlock
• Autoclavable
• Unaffected by corrosive liquids
• Heat resistant to 177 ºC

For 9.251 640 and 9.251 645.

Solid addition funnels (angle: 60°), with NS cone, made of DURAN^® tubing.

Adjustable height 140 to 230 mm. Inner diameter upper ring: 45 mm. Outer diameter bottom ring: 126 mm.

Single or double holder for funnels from 25mm (with adapter supplied) up to 170mm diameter. Without adapter they can be used for powder funnels with stem diameters not exceeding 35mm. Two clamp adapters are provided for use with rods from 8mm to 14mm.

With short stem and NS cone.

Transparent. Rapid flow due to a steep 60° angle. Practical handle for hanging. Suitable for filling large amounts of liquids.

With filling vent and handle.

White, unbreakable, chemically resistant.
For 2 or 4 funnels. Robust, heavy base provides good stability. Variable height adjustment up to 450 mm. Thanks to a magnet system, no clamping screws are necessary. The height of the funnel holder can be adjusted easily and flexibly with one hand.

With 2 or 4 aperture reduction inserts for small funnels. Suitable for funnels with diam. 40 to 180 mm.

PP holder mounted on a stand with 12.7 x 595 mm aluminium rod and heavy cast base plate.
Choice of stands to hold 2 or 4 funnels with a top diameter of 50 to 120 mm. The holder height is adjustable.

The stand for sedimentation funnels is used to keep, hold or store Imhoff funnels safely and reliably during sedimentation. Two funnel holders ensure that Imhoff funnels will be held safely and securely and can be placed in an absolutely vertical position. Stand with two holders for sedimentation funnels, suitable for funnels 90 mm or more in diameter. Thanks to an innovative magnet concept no clamping screws are necessary. The height of the funnel holder can be adjusted easily and flexibly with one hand. With the corresponding accessory the holders for Imhoff funnels can also be replaced by holders for all-purpose funnels.

• PP, chrome-plated steel
• Adjustable height up to 450 mm
• For funnels with Ø 90 mm or more

To DIN 12905.

Cylindrical shape. With interchangeable PE stopper and stopcock with key as indicated, incl. retaining device.
Graduated for reading the approx. volume.
Two types are available:

• With solid glass key stopcock
• With PTFE key stopcock

Dispensing funnel for powdered substances. With cone NS 29/32, NS 29/32 socket, NS 14,5/23 side socket.

Supplied flat-pack to minimize storage space and keep it clean. A more environmentally friendly paper product that will naturally biodegrade in the standard waste stream. Fits a wide variety of openings and can be used with virtually any liquid or powder. Cut the stem to any size or shape to meet with your needs.

This filter funnel, which is designed for normal and low pressure, is made of PTFE and PFA, making it resistant to almost all chemicals. It does not leave any trace elements in the medium to be filtered. The vacuum connection is a multi-stepped tubing ferrule with sealing screw, adjustable to suit the most common vacuum tubing bores (6 and 8 mm). The NS 29/32 socket provides a perfectly tight seal onto a similarly socketed, round-bottom flask made of PTFE, PFA or glass (please note vacuum compatibility). Supplied without membrane filter. Suitable for 47 mm diameter membranes, filter area 13.8 cm², sample funnel volume: 125 ml.

The sterile plastic funnels with 47 mm diameter allow quick performance of the filtrations required in the routine testing of water, food and beverages, pharmaceutical and cosmetic products. A Sartorius Stedim Biotech gridded membrane is placed on a stainless steel filter support and a Microsart^® Funnel is simply and practically fitted on and the sample is filtered by vacuum.

• Click-Fit closure for optimum sealing
• Graduation with markings for exact volume dosing

Rubber Spacers, made of natural rubber (NR). Conical, to fit filter funnels or crucibles into suction flasks. Durometer 40 Shore A

Straight tube outlet.

Borosilicate glass with acrylic support plate for filter paper. Can be dismantled quickly for cleaning. Dimension given is the filter paper size required.

• funnel volume 60 ml
• for filter 25 mm diameter

Funnels with smooth surfaces and short stem. 60° angle. DIN 12445.

With suspension eyelet, transparent.

• With air canal
• Tube conical shape

• For rapid filtration
• Angled at 60°
• External ribs allow air to escape during filtration
• With short, wide stem

Designed specifically for analytical chemistry. Each size takes a standard size filter paper. Body of funnel is exactly 60° angle. Provided with external and internal ribs. Autoclavable. Food-safe.

Diameter refers to the filter plates.

With suspension eyelet. Tough, robust, general purpose funnels suitable for a wide range of liquids. Upstand on rim to reduce possible overflow. Ribbed on outside to eliminate back pressure.

With short stem and 60 degree angle.

To pour and transfer free-flowing powders, liquids and slightly viscous media.

• Air channel for unobstructed flow
• Larger versions with handle
• Autoclavable
• Suitable for food