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 – 30 of 73 results
1

Fisherbrand™ Reusable Heavy-Wall Filter Flasks
GSA_VA

With heavier walls than standard Erlenmeyer flasks

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

Thermo Scientific™ Nalgene™ Polypropylene Vacuum Flask
GSA_VA

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

EDGE
No. per Case 1
Material Polypropylene
No. per Pack 1
Autoclavable Autoclavable
3

PYREX™ Filtering Flasks with Sidearm Tubulation
GSA_VA

Tubulations for easy connections to filter pumps

Disposable No
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Heavy duty rim
Mouth Style Narrow
Material Borosilicate Glass
Sterility Non-sterile
4

PYREX™ Flask Replacement Tubulation and Grommet

Replacement part for PYREX™ 10-180T flask.

5

PYREX™ Heavy Wall Filtering Flasks with Replaceable Tubulation

Replaceable plastic side arm secured by neoprene grommet

6

PYREX™ VISTA™ Micro Filter Flask with Sidearm Tubulation

Small flasks recommended for microchemical use

EDGE
Disposable No
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
7

PYREX™ Filtering Flask without Sidearm Tubulation
GSA_VA

Shaped to give maximum mechanical strength

Disposable No
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Heavy duty rim
Mouth Style Narrow
Material Borosilicate Glass
Sterility Non-sterile
8

PYREX™ Heavy Wall Filtering Flasks with Replaceable Tubulation
GSA_VA

Replaceable plastic side arm secured by neoprene grommet

Disposable No
Includes Plastic tubulation
Neck Style Narrow Mouth
Description Style: Filtering; Top style: Heavy duty rim
Mouth Style Narrow
Material Borosilicate Glass
No. per Pack 1/Pk.
Sterility Non-sterile
9

PYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm Tubulation
GSA_VA

Pyrex™ borosilicate glass with PVC coating reduces chance of breakage

Disposable No
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.
10

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

Sidearm tubulations and graduated to show approximate capacity

EDGE
Disposable No
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
11

Synthware™ Filtering Flasks with Outer Joint
SDP

Heavy wall design

Description Filtering flask with outer joint
12

Synthware™ Microscale Filtering Flask
SDP

Flask has a tapered top designed to fit a filter funnel.

Color Clear
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
13

DWK Life Sciences Kimble™ Kontes™ Heavy Wall Filtering Flask

Provides mechanical strength under vacuum application

Promotions are available
Diameter (Metric) Inner Tubing 0.93 cm
Material Borosilicate Glass
14

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

Heavy-wall borosilicate glass provides mechanical strength for vacuum filtration

Promotions are available
Material Borosilicate Glass
15

DWK Life Sciences DURAN™ Bottle Shape Filtering Flasks

With KECK assembly set

Promotions are available
Includes KECK assembly set
16

DWK Life Sciences Kimble™ KIMAX™ Flasks with Detachable Side Arm
GSA_VA

Detachable plastic side arm secured by neoprene grommet

Promotions are available
Includes Detachable side arm
Material Borosilicate Glass
Autoclavable Autoclavable
17

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

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

Promotions are available
Material Borosilicate Glass
18

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

Heavy walled with graduated scale, side tubulation, tooled neck

Promotions are available
Material Borosilicate Glass
Certifications/Compliance ASTM E1406, Type II, Class I
19

DWK Life Sciences DURAN™ KECK Assembly Set for Filtering Flasks

Promotions are available
20

DWK Life Sciences Kimble™ KIMAX™ Brand Filtering Flasks

Designed to afford maximum strength

Promotions are available
Material Borosilicate Glass
Certifications/Compliance ASTM, E1406, Type I
21

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

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

22

Synthware™ Flask for Filtration Apparatus
SDP

For filtration of corrosive solutions, particulate removal from HPLC solvents and filtration of analysis with solid phase extraction disk

23

Synthware™ Filtration Apparatus - Complete Assembly, 47 mm
SDP

For filtration of corrosive solutions, particulate removal from HPLC solvents and filtration of analysis with solid phase extraction disk

Capacity (Metric) 1 L
Color Clear
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
24

Eisco™ Glass Filtering Flask
SCI_ED

Made from high quality borosilicate 3.3 glass, extremely durable, with a low temperature gradient and superior chemical resistance. Featuring a narrow neck, side arm, and graduations.

Color Clear
Graduated Yes
Material Borosilicate Glass 3.3
Autoclavable Autoclavable
For Use With (Application) Filtering liquids
25

Eisco™ Conical Filtering Flask with Integral Screw Thread Side Arm
SCI_ED

High quality borosilicate 3.3 glass conical filtering flasks with integral plastic screw thread side arms. Conical shape provides stability, screw thread allows tight connections with other glassware.

Neck Style Narrow
Color Clear
Graduated Yes
Material Borosilicate Glass 3.3
Autoclavable Autoclavable
For Use With (Application) Filtering liquids
Sterility Non-sterile
26

Eisco™ Conical Filtering Flask with Integral Side Arm