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
Chemglass Life Sciences 8" ECO Funnel, 38-430 Thread, 1/16" HPLC Fitting, Use CG-1759-10 Waste Container
8" ECO Funnel, 38-430 Thread, 1/16" HPLC Fitting, Use CG-1759-10 Waste Container. Same as the standard 8" ECO Funnel, but with the addition of an HPLC waste hook adapter that connects to the side of the funnel eliminating the danger of dangling waste lines into bottles and containers.
BURKLE INC Single-use liquid funnel Bio-PE, Ø 3.94 in. (100 mm), white
Disposable funnel for reliable filling of liquids, ideal for filling bottles and other containers with a narrow filler opening.
The disposable funnel ensures no loss when transferring liquid samples or free-flowing solids. That makes this practical and hygienic pouring aid a helpful accessory for sampling or in laboratories.
Clean room produced funnel with suspension eye and venting fins for ventilation to ensure uniform flow while pouring.
In combination with a filter paper the disposable funnel is also well suited for filtering.
Chemglass Life Sciences 150mm Powder Funnel, Modified, 29/42 Inner Joint, 45mm Flat Sided
150mm Powder Funnel, Modified, 29/42 Inner Joint, 45mm 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.
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.
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).
Ace Glass, Inc. 190mm powder funnel with 45/50 inner joint
190mm powder funnel with 45/50 inner joint is useful in pouring powders or liquids into ground joint containers.
Chemglass Life Sciences 50mm Powder Funnel, 19/22 Inner Joint
50mm Powder Funnel, 19/22 Inner Joint. Useful for the introduction of solids or liquids into reactions under atmospheric conditions. Funnels have 60º side angle and a standard taper inner joint.
Med Vet International Round Hole Plate 3.5mm, 8 holes, 94mm, J0407I
A stronger and less expensive alternative to 3.5mm compression plates. Material is compatible with your choice of cortical or self-tapping screws.