accessibility menu, dialog, popup

Test

Flask Closures

Flask Closures

Each with its own specific application and fit, a variety of closures are available for use with flasks. Most common flask closures include screw caps and snap caps. Flask closures are typically manufactured from autoclavable plastics such as polyethylene or polypropylene. A wide range of flask closure types are available to accommodate a broad range of laboratory applications and flask varieties, including closures that are sterile or non-sterile, disposable or reusable, and vented or unvented. Vented flask closures commonly include a 0.2 µm filter membrane to prevent contamination of flask contents. For applications that require a tight seal, screw caps with plug seals are available.
Material 
  • (48)
  • (43)
  • (12)
  • (1)
  • (2)
  • (4)
  • (2)
  • (9)
Sterility 
  • (17)
  • (33)
Disposable 
  • (8)
  • (18)
Autoclavable 
  • (21)
  • (1)
Capacity (Metric) 
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Narrow Results

No results found within this category. Try removing some selected filters and try again.

category

brands

  • (2)
  • (1)
  • (4)
  • (21)
  • (7)
  • (1)
  • (2)
  • (1)
  • (2)
  • (12)
  • (1)
  • (43)
  • (1)
  • (2)
  • (1)
  • (1)
  • (5)
  • (9)
  • (4)
  • (1)

special programs

  • (19)
  • (1)
  • (21)

Material

  • (48)
  • (43)
  • (12)
  • (1)
  • (2)
  • (4)
  • (2)
  • (9)

Sterility

  • (17)
  • (33)

Disposable

  • (8)
  • (18)

Autoclavable

  • (21)
  • (1)

Capacity (Metric)

  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)

Culture Area

  • (1)
  • (1)
  • (1)
  • (2)
  • (1)

Surface Treatment

  • (6)
1 – 15 of 42 results
1

Lenz Laborglasinstrumente™ Flat Flange Lid with Center Neck and Two Angled Side Necks

EDGE
Product Type Flange lid
Material Borosilicate Glass,Duran Glass
For Use With (Application) Reaction vessels
2

Corning™ Universal CellSTACK™ Caps
BIOPHARMA GREENER_CHOICE

For filling, venting, and manipulation

3

Corning™ PYREX™ GL45 Screw Cap with Plug Seal

Nonsterile, reusable caps

Disposable Reusable
Product Type Cap
For Use With (Equipment) Graduated Erlenmeyer flasks and media bottles
Thread Size GL 45
Autoclavable Autoclavable
Sterility Non-sterile
4

Corning™ Solid Cap
BIOPHARMA

33 mm threaded cap

5

Corning™ Reusable Gas Venting Cap With PTFE Filter For Vertical Sidearm Flasks

Can be used with larger Spinner Flasks with vertical sidearms to enhance productivity of cell culture

6

Thermo Scientific™ Sterilin™ Silicone Stoppers

Guarantee a tight, reliable seal for your glass and plastic flasks. Suitable for use in various applications.

Material Silicone
Autoclavable Autoclavable
Temperature Range (Metric) -50°C to +200°C
7

Corning™ Universal CellSTACK™ Caps
BIOPHARMA GREENER_CHOICE

For filling, venting, and manipulation

8

Corning™ PYREX™ Polypropylene Flask Closures

Designed for culture tubes and flasks with long rimless necks

Disposable Reusable
Product Type Cap, Flask
For Use With (Equipment) Culture tubes and flasks with long ri mLess necks
No. per Case 100/Cs.
No. per Pack 50/Pk.
Autoclavable Autoclavable
Sterility Non-sterile
Closure Material Polypropylene
9

Corning™ Direct Overhead Drive 120mm Center Cap Assembly

For use with Corning Reusable spinner flasks

Disposable Reusable
Product Type Center Cap Assembly
No. per Case 1/Cs.
No. per Pack 1/Pk.
Sterility Non-sterile
10

Thermo Scientific™ Nunc™ Sterile Flask Replacement Filter Caps

Allow constant airflow and minimize chance of contamination by using individually packed Thermo Scientific™ Nunc™ Sterile Flask Replacement Filter Caps.

No. per Case 100
Closure Color White
Closure Type Filter
Sterility Sterile
11

Corning™ Reusable Gas Venting Cap for Vertical Sidearm Flasks

Used to provide gases into larger spinner flasks with vertical sidearms during cell culture

12

Thermo Scientific™ Caps for Nunclon™ Delta Flasks
BIOPHARMA

Protect your valuable cell culture samples. These caps for Thermo Scientific™ Nunclon™ Delta Flasks are offered in two styles—vent/close, filter—to meet application needs.

Surface Treatment Nunclon Delta
No. per Case 100
Material HDPE
No. per Pack 1
Closure Color Blue
Sterility Sterile
13

Falcon™ Vented Screw Caps for Flasks, Sterile
GREENER_CHOICE

Designed for use with Falcon 25-, 75-, and 175cm2 flasks

Includes 0.2μm Membrane vent
Product Type Cap, Vented
Color Blue
Closure Type Screw Cap
Sterility Sterile
Closure Material Polyethylene
14

Corning™ 33mm Caps
BIOPHARMA GREENER_CHOICE

Solid or vented

15

Corning™ Sterile Disposable Spinner Flask Vent Cap
BIOPHARMA GREENER_CHOICE

Designed to fit Corning 500mL, 1L and 3L disposable spinner flasks.