man

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)
  • (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)
  • (3)
  • (4)
  • (21)
  • (7)
  • (2)
  • (12)
  • (1)
  • (1)
  • (43)
  • (1)
  • (2)
  • (1)
  • (1)
  • (5)
  • (9)
  • (4)
  • (1)

special programs

  • (19)
  • (1)
  • (21)

Material

  • (48)
  • (43)
  • (12)
  • (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 39 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™ 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

5

Corning™ Solid Cap
BIOPHARMA

33 mm threaded cap

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

PYREX™ Polypropylene Caps for Erlenmeyer Flasks
BIOPHARMA GREENER_CHOICE

As supplied with Pyrex™ Brand Media/Solution bottles. Choose orange caps for temperatures to 140°C (284°F), red caps for temperatures to 180°C (356°F).

Disposable Single-use
Product Type Cap
Temperature Range (English) 284°F
Closure Color Orange
Temperature Range (Metric) 140°C
Sterility Sterile
Closure Material Polypropylene
9

Thermo Scientific™ Nalgene™ Vented HDPE Closures for Sterile Single Use Erlenmeyer Flasks

Ensure a sterile gas exchange for shaker and suspension cell culture by using Thermo Scientific™ Nalgene™ Vented HDPE Closures for Sterile Single Use Erlenmeyer Flasks.

Color Blue
No. per Case 12
Material HDPE
No. per Pack 1
Closure Type Vented
Sterility Sterile
10

Corning™ Universal CellSTACK™ Caps
BIOPHARMA GREENER_CHOICE

For filling, venting, and manipulation

Disposable Single-use
Product Type Cap, Filling
Closure Color Orange
Sterility Sterile
Closure Material HDPE
Diameter (Metric) Outer Neck 3.3 cm
11

DWK Life Sciences Kimble™ Kimax™ Polyethylene Snap Caps

Snap cap tight fit prevents leakage or evaporation

Product Type Cap, Snap
Closure Color Yellow
Closure Material Polyethylene
12

Corning™ Sterile Disposable Spinner Flask Vent Cap
BIOPHARMA GREENER_CHOICE

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

13

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
14

Corning™ Reusable Gas Venting Cap for Vertical Sidearm Flasks

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

15

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