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Filtering Flasks
  1. Home
  2. Industrial & Scientific
  3. Lab & Scientific Products
  4. Glassware & Labware
  5. Lab Flasks
  6. Filtering Flasks
  7. StonyLab 50ml Heavy…
stonylab

StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation

StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹2,870₹4,010

You save ₹1,140 (28%)

Qty
StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation — 50 ml
50 ml
₹2,870
₹4,010
In Stock
StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation — 100ml
100ml
₹3,680
₹5,690
In Stock

Estimated doorstep delivery by 21 Nov - 23 Nov from USA

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High-Quality Borosilicate Filtration Flask at Best Price

About this item

StonyLab 50ml borosilicate glass filtering flask is a durable, heavy wall laboratory flask designed for pressure and vacuum filtration. Made from high-quality borosilicate glass, it can withstand temperatures up to 450°C, making it suitable for demanding lab environments in India. The bolt neck with tubulation allows easy connection to vacuum hoses, supporting efficient filtration processes. Its precise manufacturing ensures a handmade error range of 2-3 mm, maintaining consistency for scientific use. This flask is ideal for educational, research, and industrial labs requiring reliable, heat-resistant glassware.

Supported by reviews from Indian labs, users appreciate its durability and temperature resistance, especially during pressure filtration and vacuum applications. The flask's compatibility with standard 8 mm I.D. vacuum hoses simplifies setup. Delivered via ExpressBox, all duties are included, ensuring a hassle-free import experience. Its 50ml capacity makes it perfect for small-scale experiments and sample preparations, offering a cost-effective, high-quality solution for scientific filtration needs in India.

Imported directly from the USA, this borosilicate flask offers an authentic, durable alternative to local glassware, ensuring chemical resistance and thermal stability for Indian laboratories. It is a trusted choice for precise scientific work, with fast delivery and comprehensive import duties included.

Key Features

  • Used for pressure filtration; or to increase flow rate when some concentrated solutions are slow or difficult to filter under normal pressure
  • Made of durable borosilicate glass, offering excellent chemical resistance
  • Supports vacuum filtration and can withstand temperatures up to 450°C, ensuring reliable performance in demanding laboratory environments
  • Equipped with standard side-arm tubing connection, compatible with 8 mm I.D. vacuum hoses
  • Special notice: as this item is handmade, please allow an error range of 2-3 mm

Why choose this product

Superior Chemical and Thermal Resistance

Made from high-grade borosilicate glass, this flask withstands high temperatures and aggressive chemicals, outperforming local alternatives in durability and safety. Its handmade quality ensures reliable performance for pressure and vacuum filtration in Indian labs.

Designed for Indian Laboratory Needs

Supports pressure and vacuum filtration with standard side-arm tubing, compatible with 8 mm hoses, and withstands temperatures up to 450°C. Delivered via ExpressBox, duties included, ensuring quick, hassle-free import for Indian research and industrial labs.

How to use

  • Prepare the Flask — Wash with laboratory-grade detergent, rinse thoroughly, and connect the side-arm tubing to vacuum hoses before use.
  • Set Up for Filtration — Place the concentrated solution in the flask, attach the tubing, and apply vacuum to start filtration process.
  • Post-Use Cleaning — Rinse with distilled water, autoclave if needed, and store in a dry, dust-free environment for long-term use.

Example scenarios

Typical situations where StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

A microbiology lab in Mumbai needs pressure filtration for bacterial cultures, requiring heat-resistant, durable glassware.

How this product helps

This borosilicate flask withstands autoclaving and pressure, supporting sterile filtration, delivered in 11-13 days with duties included, saving costs.

Specifications

Composition

MaterialBorosilicate Glass

Usage

Support TemperatureUp to 450°C
Support PressurePressure and vacuum filtration
Reapplication mathN/A
Shelf LifeUnopened: indefinite; use within 2-3 mm error range
ContraindicationsNone
Allergens / IrritantsNone
Cost per use₹57.40 per ml

How we compare

FeatureStonyLab 50ml HeavyOthers
Material QualityHigh-grade borosilicate glass, withstands up to 450°C, chemical resistantLocal glassware, often lower temperature resistance, variable quality
Support for Vacuum FiltrationStandard side-arm tubing, compatible with 8 mm I.D. hosesInconsistent tubing sizes, less reliable vacuum support
Manufacturing PrecisionHandmade with 2-3 mm error range, consistent qualityMass-produced, variable error margins
Price per ml₹57.40 per mlVaries by brand, typically ₹100-200 per ml

Product details

SKUtbs9287
Brandstony lab
Capacity50 ml (1.69 fl oz)
MaterialBorosilicate Glass
ShapeCylinder
Item Weight0.2 pounds (90 grams)

About stonylab

StonyLab is a trusted US brand known for durable, high-quality labware designed for scientific and industrial use worldwide.

Compliance & Legal

This is a laboratory support equipment, suitable for pressure and vacuum filtration, complies with safety standards for lab glassware. No medical or clinical claims.

Customer Reviews

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FAQ, See What Others Asked

Can this flask be heated directly over a laboratory burner or hot plate?
Yes, the borosilicate glass used in this flask supports direct heating up to 450°C, suitable for autoclaving and hot plate use in Indian labs. Ensure even heating to prevent stress.
How accurate are the volume markings on this flask?
The markings provide an approximate volume estimation within ±5%, suitable for filtration and mixing but not for precise volumetric measurements.
Is this flask compatible with standard vacuum hoses used in Indian labs?
Yes, it features a side-arm with an 8 mm I.D. connection, compatible with common vacuum hoses for pressure and vacuum filtration applications.
What is the typical delivery time for this product in India?
Delivered via ExpressBox, duties included, in 11-13 days. Orders are shipped from the USA directly to your lab, ensuring quick import and setup.
How should I clean and maintain this borosilicate flask?
Wash with laboratory-grade detergents and rinse thoroughly. It can withstand autoclaving and high temperatures, ensuring long-term durability in Indian labs.
Is this flask suitable for pressure filtration in industrial labs?
Yes, its heavy wall borosilicate construction supports pressure filtration, making it ideal for industrial and research applications in India.

Frequently bought together

StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation

This item:

StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation

₹2,870

StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation

This item

StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation

₹2,870

Total price:

₹12,240

You save ₹3,450 (22%) Extra

3 items selected

3 items

₹12,240

You save ₹3,450 (22%) Extra

Product Comparison

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StonyLab 50ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation
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StonyLab Glass 500ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation, 500ml | Supports Vacuum Filtration & Temperatures up to 450°C
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Spec
Price
₹2,870
₹4,010
₹5,690
₹5,990
₹3,680
₹5,690
₹33,440
₹63,010
₹1,720
₹3,520
₹2,460
₹3,880
₹10,950
₹14,940
Brand NamestonylabstonylabstonylabWelch AllynSTAR BRITEPangochoSwisstrax
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹2,870₹4,010

You Save ₹1,140

Estimated doorstep delivery by 21 Nov - 23 Nov from USA
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International Air Shipping
Fast transit
Consignment to India Warehouse
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Doorstep delivery
Delivered to you

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₹8,610+ (3× the price)
₹2,870 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
11-13 days · live tracking
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Lost in transit = ₹0 back
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