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Filtering Flasks

Filtering Flasks

Filtering flasks are used in numerous general laboratory procedures for rapid filtration of liquids. Typical flask design includes a conical shape with a flat bottom, tapered neck, and a sidearm for use in vacuum filtration. Filtering flasks are most commonly manufactured from borosilicate glass with thick walls that can withstand pressure under vacuum. Depending on the application, the flasks can be manufactured from other materials, such as polystyrene. Filtering flasks are available in a variety of volumes and socket sizes. Graduated and ungraduated varieties are available. Filtering flasks are also known as vacuum flasks, Buchner flasks, suction flasks, Kitasato flasks, or side-arm flasks. The flasks are often used with other accessories, such as a Buchner funnel that is fitted through a rubber bung or a Buchner ring. The sidearm can be integral to the flask or detachable, with barb-like rings on the tip to allow for connection to vacuum tubing.
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1 – 15 of 148 results
1

Fisherbrand™ Reusable Heavy-Wall Filter Flasks

With heavier walls than standard Erlenmeyer flasks

EDGE
Graduated Yes
Temperature Range (English) 840°F max.
Material Borosilicate Glass
Certifications/Compliance ASTM E 1406, Type II, Class I
2

Corning™ PYREX™ Filtering Flasks with Sidearm Tubulation
GREENER_CHOICE

Tubulations for easy connections to filter pumps

EDGE
Disposable Reusable
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Heavy duty rim
Mouth Style Narrow
Material Borosilicate Glass
Sterility Non-sterile
3

PYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm Tubulation
GREENER_CHOICE

Pyrex™ borosilicate glass with PVC coating reduces chance of breakage

EDGE
Disposable Reusable
Height (Metric) 35.6 cm
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Heavy duty rim
Mouth Style Narrow
Material Borosilicate Glass
Sterility Non-sterile
Surface Coating Pyrexplus
Height (English) 14.01 in.
4

DWK Life Sciences Kimble™ KIMAX™ Flasks with Quick-Release Hose Connector
SDP

Allow safe attachment of 0.25 in. I.D. (6mm) tubing

Promotions are available
EDGE
Material Borosilicate Glass
5

DWK Life Sciences Kimble™ KIMAX™ Filtering Flasks with Side Arm
SDP

Heavy walled with graduated scale, side tubulation, tooled neck

Promotions are available
EDGE
Material Borosilicate Glass
Certifications/Compliance ASTM E1406, Type II, Class I
6

PYREX™ VISTA™ Heavy-Wall Filter Flasks with Sidearm Tubulation
GREENER_CHOICE

Sidearm tubulations and graduated to show approximate capacity

EDGE
Disposable Reusable
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Beaded rim
Mouth Style Narrow
Diameter (Metric) Outer Tubing 1 cm
No. per Case 12/Cs.
Material Borosilicate Glass
No. per Pack 6/Pk.
Sterility Non-sterile
7

DWK Life Sciences DURAN™ Bottle Shape Filtering Flasks
SDP

With KECK assembly set

Promotions are available
Includes KECK assembly set
8

Thermo Scientific™ Nalgene™ Polypropylene Vacuum Flask
GREENER_CHOICE

Replace glass flasks with this flask, molded in one piece for full vacuum service with angled tubulation to prevent tipping.

Promotions are available
EDGE
No. per Case 1
Material Polypropylene
No. per Pack 1
Autoclavable Autoclavable
9

DWK Life Sciences Kimble™ Kontes™ ULTRA-WARE™ Heavy-Wall Filter Flasks
SDP

Heavy-wall borosilicate glass provides mechanical strength for vacuum filtration

Promotions are available
EDGE
Material Borosilicate Glass
10

PYREX™ Heavy Wall Filtering Flasks with Replaceable Tubulation
GREENER_CHOICE

Replaceable plastic side arm secured by neoprene grommet

11

Synthware™ Filtering Flasks with Outer Joint
GREENER_CHOICE SDP

Heavy wall design

Description Filtering flask with outer joint
Mouth Style Rimmed
Closure Size 24/40
Graduated No
Bottom Shape Flat
Class A
Material Borosilicate Glass (3.3)
Closure Type Glass Stopper
Autoclavable Autoclavable
Sterility Non-sterile
12

DWK Life Sciences Kimble™ KIMAX™ Brand Filtering Flasks
SDP

Designed to afford maximum strength

Promotions are available
Material Borosilicate Glass
Certifications/Compliance ASTM, E1406, Type I
13

Bel-Art™ SP Scienceware™ Filtering Flasks with Side Arm

Polypropylene flask has side-arm at 45° downward angle to prevent tipping

14

Synthware™ Filtration Apparatus - Complete Assembly, 47 mm
GREENER_CHOICE SDP

Filtration Apparatus for filtration of corrosive solutions, particulate removal from HPLC solvents and filtration of analysis with solid phase extraction disk.

Disposable Reusable
Diameter (Metric) Disc 47 mm
Mouth Style Beaded
Capacity (Metric) 1 L
Color Clear
Surface Treatment Non-treated
Graduated Yes
Bottom Shape Flat
Material Borosilicate Glass
Autoclavable Autoclavable
For Use With (Application) Organic Synthesis
Sterility Non-sterile
15

PYREX™ VISTA™ Micro Filter Flask with Sidearm Tubulation
GREENER_CHOICE

Small flasks recommended for microchemical use

Disposable Reusable
Includes Tubulation
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Beaded rim
Mouth Style Narrow
Diameter (Metric) Outer Tubing 1 cm
No. per Case 12/Cs.
Material Borosilicate Glass
No. per Pack 6/Pk.
Sterility Non-sterile