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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

DWK Life Sciences KIMBLE™ KIMAX™ Brand Filtering Flasks
SDP

KIMBLE™ KIMAX™ Brand Filtering Flasks are heavy-walled borosilicate glass vessels designed for maximum strength and durability. Necks are tooled for uniform stopper fit with a thick flat flange, and a white ceramic enamel scale indicates approximate volume.

Material Borosilicate Glass
Certifications/Compliance ASTM, E1406, Type I
2

DWK Life Sciences WHEATON™ 1000mL Filter Flask with 40/35 Joint
SDP

WHEATON™ 1000mL Filter Flask with 40/35 Joint is designed for vacuum filtration applications. Erlenmeyer-style heavy-wall glass construction provides the mechanical strength required for filtration. Side arm accepts standard 0.25 in. (6mm) I.D. tubing via a #2 hose connection.

For Use With (Equipment) 90 mm filtration assembly
Material Borosilicate Glass
For Use With (Application) Analysis of particulate or microbiological contamination
3

DWK Life Sciences KIMBLE™ KONTES™ Filtration Flask With Inner Joint 40/35, for 90mm Glass Assemblies
SDP

KIMBLE™ KONTES™ Filtration Flask With Inner Joint 40/35, for 90mm Glass Assemblies is manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements. Designed for use with Ultra-Ware 90mm all-glass microfiltration assemblies.

Standard Taper Joint 40/35
Product Type Flask
For Use With (Equipment) Ultra-Ware 90 mm all-glass Microfiltration Assembly
Material Borosilicate Glass
4

DWK Life Sciences KIMBLE™ KIMAX™ Flasks with Detachable Side Arm
SDP

KIMBLE™ KIMAX™ Flasks with Detachable Side Arm feature an Erlenmeyer heavy-wall design with a white graduated scale and tooled mouth. The autoclavable plastic side arm accepts 0.3125 in. I.D. flexible tubing, secured by a neoprene grommet.

Includes Detachable side arm
Material Borosilicate Glass
Autoclavable Autoclavable
5

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

KIMBLE™ KIMAX™ Flasks with Quick-Release Hose Connector allow safe attachment of 0.25 in. I.D. (6mm) tubing. Heavy-wall borosilicate glass filter flasks feature a quick-release connector for secure, stable tubing connections during vacuum filtration.

Material Borosilicate Glass
6

DWK Life Sciences KIMBLE™ KIMAX™ Graduated Filtering Flask with Side Tubulation
SDP

The KIMBLE™ KIMAX™ Graduated Filtering Flask with Side Tubulation is designed for vacuum to 29° of mercury. Heavy-wall borosilicate glass construction with a capacity scale and side hose connection for 5/16 inch I.D. flexible tubing.

7

DWK Life Sciences DURAN™ Bottle Shape Filtering Flasks with KECK Assembly Set
SDP

DURAN™ Bottle Shape Filtering Flasks with KECK Assembly Set are large-capacity borosilicate glass filtering flasks designed for demanding filtration applications. Each flask includes a removable plastic hose connection (PBT), short and long screws (PP), and VMQ and EPDM seals.

Includes KECK assembly set
8

DWK Life Sciences WHEATON™ Graduated Filter Flask, No. 8 Stopper Joint, 1000 mL
SDP

Designed for filtration and vacuum applications. Easy-to-read graduations help estimate liquid volumes, while the heavy-duty glass construction and stopper joint provide reliable performance for routine laboratory procedures.

9

DWK Life Sciences KIMBLE™ KONTES™ ULTRA-WARE™ Heavy-Wall Filter Flasks
GSA_VA SDP

KIMBLE™ KONTES™ ULTRA-WARE™ Heavy-Wall Filter Flasks feature heavy-wall borosilicate glass for mechanical strength during vacuum filtration, plus KimCote™ plastic safety coating for added protection against breakage.

Material Borosilicate Glass
10

DWK Life Sciences KIMBLE™ KONTES™ Filtration Assemblies: Flasks With Side Arm, No. 2 Hose Connection
SDP

KIMBLE™ KONTES™ Filtration Assemblies: Flasks With Side Arm, No. 2 Hose Connection are borosilicate glass filtration flasks with a #2 hose connection for 0.25 in. (6mm) ID tubing, conforming to USP Type I and ASTM E438, Type I, Class A requirements.

Includes No. 2 Hose Connection
Quantity 1/Cs.
Material Borosilicate Glass
11

DWK Life Sciences KIMBLE™ KIMAX™ Filtering Flasks with Side Arm
GSA_VA SDP

KIMBLE™ KIMAX™ Filtering Flasks with Side Arm are heavy-walled borosilicate glass flasks with a graduated scale, side tubulation, and tooled neck, designed for reliable vacuum filtration across a wide range of laboratory capacities.

Material Borosilicate Glass
Certifications/Compliance ASTM E1406, Type II, Class I
12

Corning™ PYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm Tubulation
GSA_VA 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.
13

Corning™ PYREX™ VISTA™ Heavy-Wall Filter Flasks with Sidearm Tubulation
GSA_VA 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
14

Corning™ PYREX™ Filtering Flasks with Sidearm Tubulation
GSA_VA 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
15

Fisherbrand™ Reusable Heavy-Wall Filter Flasks

Fisherbrand™ Reusable Heavy-Wall Filter Flasks feature heavier walls than standard Erlenmeyer flasks and are designed to withstand vacuum to 29 in. of mercury. With side tubulation and a capacity scale, they are ideal for reliable vacuum filtration in the lab.

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