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MTC Bio F4067 filtered cap; representative image for F4067 and F4068
MTC Bio F4069 Jumbo filtered cap
MTC Bio F4067 filtered cap; representative image for F4067 and F4068
MTC Bio F4069 Jumbo filtered cap

MTC Bio Replacement Filtered Flask Caps – 10 per Pack

$33.97

    Replace the closure—not the complete flask.

    • Size-specific replacements: F4067 fits 125/250 mL; F4068 fits 500/1000 mL MTC Bio flasks.
    • Dedicated Jumbo fit: F4069 fits MTC Bio F4086 2.8 L and F4087 5.0 L Jumbo flasks.
    • Filtered venting: Polypropylene screw caps include 0.2 µm membranes for air transmission.
    • Clear pack ordering: Each variant is a ten-cap pack; complete flasks are ordered separately.

See All Specs

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Fast Delivery

Most items ship same day

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Manufacturer Warranty

All products are covered by manufacturer warranty

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After-Sale Support

24/7 support

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What's Included

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VR Headset

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MTC Bio F4067 filtered cap; representative image for F4067 and F4068

Replace the closure—not the complete flask.

Caps only, with 0.2 µm filters. Match F4067, F4068 or F4069 to the exact MTC Bio flask family and capacity below. Each ordering unit contains ten caps; no vessels are included.

Caps only

No flasks included

0.2 µm

Filter membrane

3 fit groups

Match catalog number

10/pack

Sellable ordering unit

Designed for Your Workflow

Size-specific replacements
F4067 fits 125/250 mL; F4068 fits 500/1000 mL MTC Bio flasks.

Dedicated Jumbo fit
F4069 fits MTC Bio F4086 2.8 L and F4087 5.0 L Jumbo flasks.

Filtered venting
Polypropylene screw caps include 0.2 µm membranes for air transmission.

Clear pack ordering
Each variant is a ten-cap pack; complete flasks are ordered separately.

MTC Bio F4069 Jumbo filtered cap

Select by material, capacity and compatibility

Use the compatibility table, not the photograph or nominal volume alone. Do not assume fit to another manufacturer’s flask. Supplied sterility and autoclaving of separate replacement-cap packs are not established by the cited manufacturer listing.

Choose Your Configuration

F4067

Configuration: 125 and 250 mL | 10 caps per pack

Order unit: 10 caps per pack

F4068

Configuration: 500 and 1000 mL | 10 caps per pack

Order unit: 10 caps per pack

F4069

Configuration: 2.8 and 5.0 L Jumbo | 10 caps per pack

Order unit: 10 caps per pack

Typical Applications

  • Replacing compatible flask closures
  • Maintaining size-specific spare-cap stock
  • Supporting Erlenmeyer culture workflows
  • Supporting Jumbo Fernbach culture workflows

Selection and Use Tip

Use the compatibility table, not the photograph or nominal volume alone. Do not assume fit to another manufacturer’s flask. Supplied sterility and autoclaving of separate replacement-cap packs are not established by the cited manufacturer listing.

Related Flasks and Compatible Caps

F4067/F4068 fit the specified smaller Erlenmeyer sizes; F4069 fits F4086/F4087 Jumbo vessels. Complete vessels are sold separately.

MTC Bio Erlenmeyer Shaker Flasks – 125 to 1000 mL | MTC Bio Jumbo Fernbach Shaker Flasks – 2.8 and 5.0 L

Frequently Asked Questions

Does this listing include flasks?

No. This page sells replacement filtered screw caps only, ten caps per pack. Complete Erlenmeyer and Jumbo Fernbach flasks are separate products.

Which flasks fit F4067?

F4067 fits MTC Bio 125 and 250 mL Erlenmeyer flasks: F4060-B, F4060-F, F4061-B and F4061-F. It is not the cap specified for the larger flask sizes.

Which flasks fit F4068?

F4068 fits MTC Bio 500 and 1000 mL Erlenmeyer flasks: F4062-B, F4062-F, F4063-B and F4063-F. Do not substitute it for the Jumbo cap.

Does F4069 fit the Jumbo Fernbach flasks?

Yes. MTC Bio explicitly specifies F4069 for both F4086 2.8 L and F4087 5.0 L Jumbo flasks. This compatibility does not apply to F4067 or F4068.

What filter is included?

The manufacturer specifies a 0.2 µm membrane in the polypropylene screw cap for venting and air transmission. This is not a liquid-filtration device or a guarantee of sterility after handling.

Are the replacement caps sterile or autoclavable?

The source specifies sterility for complete wrapped flasks and an autoclave rating for polycarbonate flasks, but does not separately establish those claims for replacement-cap packs. Confirm cap-specific sterilization and reuse guidance before a sterile workflow.

Will these caps fit Corning or other brands?

No cross-brand cap compatibility is established. Corning also offers vent-cap culture flasks, but shared nominal capacity or venting does not prove matching threads, sealing surfaces or filter performance. These MTC Bio caps are not represented as Corning OEM or drop-in replacements.

What does quantity one mean and are photos size-specific?

Quantity one is a pack of ten caps. The manufacturer uses the F4067 photograph for both F4067 and F4068, so that image is representative for those two sizes; select by catalog compatibility. F4069 has a separate manufacturer image.

Brand names are trademarks of their respective owners. No OEM status, endorsement or universal interchangeability is implied.

    SpecificationDetail
    BrandMTC Bio
    ContentsReplacement caps only; no flasks
    Material and filterPolypropylene screw cap; 0.2 µm filter membrane
    F4067 compatibilityMTC Bio F4060-B/F and F4061-B/F; 125 and 250 mL
    F4068 compatibilityMTC Bio F4062-B/F and F4063-B/F; 500 and 1000 mL
    F4069 compatibilityMTC Bio F4086 and F4087; 2.8 and 5.0 L Jumbo
    Pack size10 caps per pack
    Sterility and autoclavingNot established for separate replacement-cap packs; confirm before use

    Ordering Information — Complete Sellable Units

    Catalog No.ConfigurationPieces per UnitUnitShipping Weight per Unit2027 List per Unit
    F4067125 and 250 mL | 10 caps per pack10pack1 lb$33.97
    F4068500 and 1000 mL | 10 caps per pack10pack1 lb$39.82
    F40692.8 and 5.0 L Jumbo | 10 caps per pack10pack1 lb$45.68

    MTC Bio Shipping and Return Policy

    At Blue Tiger Scientific, we proudly distribute authentic MTC Bio products. The following policies apply to all purchases made through our store. All return requests must be initiated with Blue Tiger Scientific before being processed by MTC Bio.

    Shipping Policy

    Orders for MTC Bio products are fulfilled and shipped directly by MTC Bio using FedEx or UPS, with FedEx Ground as the default shipping method unless otherwise specified.

    • Expedited shipping options (2-Day, Overnight) are available at an additional cost.
    • MTC Bio only ships to residential or business addresses within the United States—no PO Boxes.
    • Orders placed after business hours, weekends, or holidays will be processed the next business day, pending product and carrier availability.
    • Shipping timelines may vary based on product availability, order size, and carrier logistics.
    • Blue Tiger Scientific and MTC Bio are not responsible for carrier delays, weather-related disruptions, or unforeseen delivery issues once the order has shipped.

    Return Policy

    If a return is necessary, customers must start the process with Blue Tiger Scientific before returning any products to MTC Bio.

    • All return requests must be initiated with Blue Tiger Scientific before shipping a product back to MTC Bio.
    • Customers must obtain a Return Merchandise Authorization (RMA) number from Blue Tiger Scientific before returning any item.
    • Customers are responsible for return shipping costs unless otherwise stated.
    • Opened or used products cannot be returned—only unused items in original packaging will be accepted.
    • Unauthorized returns (without an RMA) will be refused and returned at the customer’s expense.
    • Returned items are subject to inspection, and a 20% restocking fee may be applied.
    • Refunds will cover the product cost only—shipping fees paid at the time of purchase are non-refundable.
    • Certain items, such as custom-built, special-order, or hazardous materials, may not be eligible for return.

    Important Notes

    • Some MTC Bio products are custom-made or built to order; shipping will occur once the product is ready.
    • In the event of backorders, partial shipments may be requested.
    • Occasional delays due to material shortages, import issues, or carrier problems.

Product Resources:

Manual Manual
Brochure Brochure

Copy of Technical Specifications

FeatureDetails
Viewing Head Siedentopf type trinocular head, inclined at 30°, Interpupillary adjustment 53mm to 75mm, graduated diopter on left eyetube (30mm I.D. eyetubes)
Eyepieces SWH10X Widefield high eyepoint eyepiece, Field No. 22, tube O.D. 30.0 mm
Nosepiece Quintuple
Quintuple LWD Planachromat Phase 10x, 20x
Condenser TC Condenser N.A. 0.30, W.D. 73.0mm
Stage180mm(X) x 245mm(Y) plain stage with replaceable glass insert with 45mm opening, Glass Stage plate insert
IlluminationKoehler without iris, with phase slider, 3W LED
WarrantyLIMITED LIFETIME WARRANTY

Questions about a product? Ask us here.

email us here: info@bluetigerscientific.com or live chat

MTC Bio F4067 filtered cap; representative image for F4067 and F4068
by MTC Bio

MTC Bio Replacement Filtered Flask Caps – 10 per Pack

Authorized Dealer
Configuration: 125 and 250 mL | 10 caps per pack
MTC Bio F4067 filtered cap; representative image for F4067 and F4068

Replace the closure—not the complete flask.

Caps only, with 0.2 µm filters. Match F4067, F4068 or F4069 to the exact MTC Bio flask family and capacity below. Each ordering unit contains ten caps; no vessels are included.

Caps only

No flasks included

0.2 µm

Filter membrane

3 fit groups

Match catalog number

10/pack

Sellable ordering unit

Designed for Your Workflow

Size-specific replacements
F4067 fits 125/250 mL; F4068 fits 500/1000 mL MTC Bio flasks.

Dedicated Jumbo fit
F4069 fits MTC Bio F4086 2.8 L and F4087 5.0 L Jumbo flasks.

Filtered venting
Polypropylene screw caps include 0.2 µm membranes for air transmission.

Clear pack ordering
Each variant is a ten-cap pack; complete flasks are ordered separately.

MTC Bio F4069 Jumbo filtered cap

Select by material, capacity and compatibility

Use the compatibility table, not the photograph or nominal volume alone. Do not assume fit to another manufacturer’s flask. Supplied sterility and autoclaving of separate replacement-cap packs are not established by the cited manufacturer listing.

Choose Your Configuration

F4067

Configuration: 125 and 250 mL | 10 caps per pack

Order unit: 10 caps per pack

F4068

Configuration: 500 and 1000 mL | 10 caps per pack

Order unit: 10 caps per pack

F4069

Configuration: 2.8 and 5.0 L Jumbo | 10 caps per pack

Order unit: 10 caps per pack

Typical Applications

  • Replacing compatible flask closures
  • Maintaining size-specific spare-cap stock
  • Supporting Erlenmeyer culture workflows
  • Supporting Jumbo Fernbach culture workflows

Selection and Use Tip

Use the compatibility table, not the photograph or nominal volume alone. Do not assume fit to another manufacturer’s flask. Supplied sterility and autoclaving of separate replacement-cap packs are not established by the cited manufacturer listing.

Related Flasks and Compatible Caps

F4067/F4068 fit the specified smaller Erlenmeyer sizes; F4069 fits F4086/F4087 Jumbo vessels. Complete vessels are sold separately.

MTC Bio Erlenmeyer Shaker Flasks – 125 to 1000 mL | MTC Bio Jumbo Fernbach Shaker Flasks – 2.8 and 5.0 L

Frequently Asked Questions

Does this listing include flasks?

No. This page sells replacement filtered screw caps only, ten caps per pack. Complete Erlenmeyer and Jumbo Fernbach flasks are separate products.

Which flasks fit F4067?

F4067 fits MTC Bio 125 and 250 mL Erlenmeyer flasks: F4060-B, F4060-F, F4061-B and F4061-F. It is not the cap specified for the larger flask sizes.

Which flasks fit F4068?

F4068 fits MTC Bio 500 and 1000 mL Erlenmeyer flasks: F4062-B, F4062-F, F4063-B and F4063-F. Do not substitute it for the Jumbo cap.

Does F4069 fit the Jumbo Fernbach flasks?

Yes. MTC Bio explicitly specifies F4069 for both F4086 2.8 L and F4087 5.0 L Jumbo flasks. This compatibility does not apply to F4067 or F4068.

What filter is included?

The manufacturer specifies a 0.2 µm membrane in the polypropylene screw cap for venting and air transmission. This is not a liquid-filtration device or a guarantee of sterility after handling.

Are the replacement caps sterile or autoclavable?

The source specifies sterility for complete wrapped flasks and an autoclave rating for polycarbonate flasks, but does not separately establish those claims for replacement-cap packs. Confirm cap-specific sterilization and reuse guidance before a sterile workflow.

Will these caps fit Corning or other brands?

No cross-brand cap compatibility is established. Corning also offers vent-cap culture flasks, but shared nominal capacity or venting does not prove matching threads, sealing surfaces or filter performance. These MTC Bio caps are not represented as Corning OEM or drop-in replacements.

What does quantity one mean and are photos size-specific?

Quantity one is a pack of ten caps. The manufacturer uses the F4067 photograph for both F4067 and F4068, so that image is representative for those two sizes; select by catalog compatibility. F4069 has a separate manufacturer image.

Brand names are trademarks of their respective owners. No OEM status, endorsement or universal interchangeability is implied.

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