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

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

Heavy walled with graduated scale, side tubulation, tooled neck

Promotions are available
EDGE
Material Borosilicate Glass
Certifications/Compliance ASTM E1406, Type II, Class I
2

Fisherbrand™ Reusable Heavy-Wall Filter Flasks

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
3

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

Detachable plastic side arm secured by neoprene grommet

Promotions are available
Includes Detachable side arm
Material Borosilicate Glass
Autoclavable Autoclavable
4

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
5

PYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm Tubulation

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.
6

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

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

Promotions are available
Material Borosilicate Glass
7

DWK Life Sciences DURAN™ KECK Assembly Set for Filtering Flasks

Promotions are available
8

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

Sidearm tubulations and graduated to show approximate capacity

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
9

PYREX™ Flask Replacement Tubulation and Grommet

Replacement part for PYREX™ 10-180T flask.

10

Thermo Scientific™ Nalgene™ Polypropylene Vacuum Flask

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

11

PYREX™ Filtering Flasks with Sidearm Tubulation

Tubulations for easy connections to filter pumps

12

PYREX™ Heavy Wall Filtering Flasks with Replaceable Tubulation

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
13

PYREX™ Heavy Wall Filtering Flasks with Replaceable Tubulation

Replaceable plastic side arm secured by neoprene grommet

14

DWK Life Sciences DURAN™ Bottle Shape Filtering Flasks

With KECK assembly set

Promotions are available
Includes KECK assembly set
15

PYREX™ VISTA™ Micro Filter Flask with Sidearm Tubulation

Small flasks recommended for microchemical use

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
16

PYREX™ Filtering Flask without Sidearm Tubulation

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
17

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
18

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

Heavy-wall borosilicate glass provides mechanical strength for vacuum filtration

Promotions are available
Material Borosilicate Glass
19

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

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

20

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

21

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
22

Synthware™ Filtering Flasks with Outer Joint
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
23