Filling Funnels
Funnels have a conical shape and short, wide stems for filling bottles or transferring powders. Filling funnels typically have a 60-degree angle that permits accurate fitting of filter paper, as well as vents or flutes to reduce vacuum formation and decrease filtering time.
Filling Funnel Materials
Glass
Borosilicate glass filling funnels include a strong beaded edge that resists chipping. Their resistant structure allows for the use of various reagents and chemicals. They also have a high resistance to thermal and mechanical shock and chemical attack. Funnels made from flint glass and soda-lime glass are also available.
Plastic
Plastic filling funnels may be disposable or reusable and are made from polystyrene, polypropylene, polyethylene (LDPE or HDPE), or other resins.
Metal
Metal funnels are durable and reusable and may be constructed from a variety of metals. Each has characteristics that facilitate a particular use and purpose.
Filling funnels are available in a range of sizes and dimensions. They are typically sized based on capacity — the volume they can contain. Dimensionally, they may vary in top diameter, stem length, stem diameter, bowl angle, bowl capacity, and overall length. Filling funnels may be classified as Class A or Class B based on tolerances specified by ASTM and other standards.
What Different Types of Glass Funnels Are Available?
• General-purpose glass filling funnels for channeling, filling, and decanting liquids
• Short-stem or powder funnels to prevent the stem from clogging during the handling of fine powders
• Long-stem analytical funnels, often used with filter papers
• Fluted funnels to help reduce vacuums and facilitate more rapid filtration
• Büchner, glass-filtering, 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, typically from 10 to 40 μm
• Pear-shaped separatory funnels (separating or separation funnels) fitted with a stopper and a PTFE or glass stopcock for separating layered immiscible liquids in chemistry applications
• Weighing funnels to function as weighing dishes and to transfer weighed solids to other vessels
BURKLE INC Disposable powder funnel, PS, Ø 3.94 in (100 mm), white, sterile
The disposable powder funnel has a short and wide outlet and is suitable for transferring powdered samples and materials, granulates, suspensions and other liquids.
The wide opening of the disposable powder funnel prevents the powder or granulate from clogging during filling. The practical and hygienic filling aid is therefore a useful accessory when taking samples or in the laboratory.
In combination with a filter paper, the disposable funnel is also very suitable for filtering.
Foxx Life Sciences Autofil 2 Bottle Top Vacuum Filtration unit, Funnel Only, 250 mL, 0.45 µm PES Membrane, Sterile, 12/CS
The Autofil 2 Bottle Top Vacuum Filter Funnel Only features 0.1um, 0.2um, or 0.45um PES membranes. Perfect for filtering FBS and other viscous solutions. The membrane is low protein binding and surfactant-free.
Features
Available in 250ml, 500ml and 1000ml. Funnel is compatible with GL 45 thread bottles
Bottle top Filter units include adapter for connecting to vacuum hose
Design includes the NEW EZLabpure™ ergonomic bottle shape with molded finger grip
GL 45 caps provides a convenient gripping surface
All units are sterile and manufactured from USP Class VI polystyrene in an ISO 13485 clean room
Chemglass Life Sciences Funnel, Powder, PTFE, 52mm Diameter, Stem 16mm, 84mm Height
PTFE powder funnel is totally chemically inert with super smooth non-stick internal finish.Virgin grade PTFE conforming to FDA and USP Class VIChemical Resistance is virtually total.Temperature Range, -200°C to 260°C (-328°F to 500°F).Shelf life is considered indefinite within the confines of normal use and storage conditions.Autoclavable
Bellco Glass, Inc. Aseptic Fill Bell,50mm
Manufactured from Type 1 Class A Borosilicate Glass. Ideal for use of filling other glass vessels. Receiving vessel is placed under bell to maintain aseptic conditions during filling. Attaches to reservoir with rubber tubing. MADE IN THE USASpecifications:Type 1 Class A Borosilicate GlassDimensions: 49x100mmTubing Size: 1/2″2 per case
BURKLE INC Blue disposable powder funnel PS, Ø 3.94 in. (100 mm), sterile
The blue disposable powder funnel, made of polystyrene, is produced in a cleanroom class 7 (10,000), individually packaged for single use, and sterilized.
The unique blue color doesn’t naturally occur in food, making it easy to spot during visual inspections if mixed into production.
Using blue tools supports HACCP hazard analysis by helping identify foreign objects, crucial in food, animal feed, and pharmaceutical industries.
The funnel features a short, wide discharge ideal for transferring powders, granulates, suspensions, and liquids.
Its wide opening prevents clogging, making it a practical, hygienic accessory for sampling and lab use.
When combined with filter paper, it is also suitable for filtering applications.
Chemglass Life Sciences 75mm Powder Funnel, Modified, 24/40 Inner Joint, 25mm Flat Sided
75mm Powder Funnel, Modified, 24/40 Inner Joint, 25mm Flat Sided. Similar to CG-1720, but with one side flattened to allow funnel to be used in multi-neck flasks where space is limited. Flat side dimension is the distance between the center of the standard taper inner joint and the flattened side of the funnel. Funnels have 60º angled sides with a standard taper inner joint.
Foxx Life Sciences Autofil 2 Bottle Top Filter, Funnel Only, 1000 mL, 0.1 µm PES Membrane, Sterile, 12/CS
The Autofil 2 Bottle Top Vacuum Filter Funnel Only features 0.1um, 0.2um, or 0.45um PES membranes. Perfect for filtering FBS and other viscous solutions. The membrane is low protein binding and surfactant-free.
Features
Available in 250ml, 500ml and 1000ml. Funnel is compatible with GL 45 thread bottles
Bottle top Filter units include adapter for connecting to vacuum hose
Design includes the NEW EZLabpure™ ergonomic bottle shape with molded finger grip
GL 45 caps provides a convenient gripping surface
All units are sterile and manufactured from USP Class VI polystyrene in an ISO 13485 clean room
Chemglass Life Sciences Funnel, Powder, PTFE, 104mm Diameter, Stem 22mm, 150mm Height
PTFE powder funnel is totally chemically inert with super smooth non-stick internal finish.Virgin grade PTFE conforming to FDA and USP Class VIChemical Resistance is virtually total.Temperature Range, -200°C to 260°C (-328°F to 500°F).Shelf life is considered indefinite within the confines of normal use and storage conditions.Autoclavable
Chemglass Life Sciences Chemglass 100 mm Fluted Glass Funnel, 60° Angle, Short Stem - Case of 12
This 100 mm fluted glass funnel is designed for laboratory filtration and transfer tasks where faster flow and reduced clogging are required. The 60° fluted cone and depressed inside flutings promote efficient filtering, and the short stem provides compact handling in crowded setups.
- Material: PYREX glass.
- Size (top ID): 100 mm.
- Angle: 60° cone.
- Stem type: short stem for compact use.
- Design: fluted with depressed inside flutings to decrease filtering time.
- Pack quantity: case of 12 (CS12).
Bellco Glass, Inc. Aseptic Fill Bell,70mm
Manufactured from Type 1 Class A Borosilicate Glass. Ideal for use of filling other glass vessels. Receiving vessel is placed under bell to maintain aseptic conditions during filling. Attaches to reservoir with rubber tubing. MADE IN THE USASpecifications:Type 1 Class A Borosilicate GlassDimensions: 70x125mmTubing Size: 1/2″2 per case
Chemglass Life Sciences Chemglass disposable filter funnel, 150 mL, straight top - polypropylene funnel with polyethylene frit and 7.0 g silica gel (30/Case)
Disposable filter funnel designed for rapid solid-liquid separation in chemistry and life-science laboratories. The polypropylene funnel features a polyethylene frit and contains 7.0 g of silica gel; the 80 mm stem helps prevent contamination of glass vacuum adapters during vacuum-assisted filtration. Sold bulk-packed in cases of 30 for high-throughput workflows.
- Disposable polypropylene funnel with polyethylene frit
- 150 mL capacity
- Contains 7.0 g silica gel per funnel
- 80 mm stem to reduce adapter contamination
- Straight top funnel design
- Bulk-packed, 30 per case
- Intended for solid-liquid separation and vacuum filtration
Hach Company Funnel, Analytical, 114 mL Approximate Volume
Standard long stem funnel meets the needs of a wide variety of applications. Mounded ribbing prevents "air lock" commonly occurring during funneling and filtrations. A steep, 58-degree cone slope makes for fast and easy flow of either liquids or small solids. Polypropylene construction is resistant to chemicals and makes this funnel fully autoclavable for sterilization.
Foxx Life Sciences Borosil Funnels with 60 Angle Bowls and 75mm Stems, Extra Large (XL), 20/CS
Borosil Short Stem Funnels are built for durability & long-term use. Funnels have 60 bowl angles for perfect fit with filter papers. Used for filtration & decanting of a wide variety of liquids. Built from Borosil's world-renowned 3.3 borosilicate, low-expansion, chemically resistant glass. Avail. in a variety of sizes from 25mm diameter (XS, Extra Small) to 100mm diameter (XXL, 2X-Extra Large). Borosil Short Stem Funnels comply with DIN/ISO 4798. In collaboration with Borosil Glass Works, Foxx Life Sciences is proud to bring the outstanding quality of Borosil Type 3.3 Borosilicate glassware to North America for the first time. Manufactured from the same USP Type 1 borosilicate glass that North American scientists have come to trust Borosil Laboratory Glassware offers unparalleled mechanical strength, clarity & reliability at competitive prices. And thanks to a unique annealing process, Borosil Glassware is stress-free & incredibly resistant to thermal shock.
Foxx Life Sciences Autofil 2 Bottle Top Vacuum Filtration unit, Funnel Only, 1000 mL, 0.45 µm PES Membrane, Sterile, 12/CS
The Autofil 2 Bottle Top Vacuum Filter Funnel Only features 0.1um, 0.2um, or 0.45um PES membranes. Perfect for filtering FBS and other viscous solutions. The membrane is low protein binding and surfactant-free.
Features
Available in 250ml, 500ml and 1000ml. Funnel is compatible with GL 45 thread bottles
Bottle top Filter units include adapter for connecting to vacuum hose
Design includes the NEW EZLabpure™ ergonomic bottle shape with molded finger grip
GL 45 caps provides a convenient gripping surface
All units are sterile and manufactured from USP Class VI polystyrene in an ISO 13485 clean room