DURAN 217713603 Culture Flask 250 mL

DURAN 217713603 Culture Flask 250 mL (Erlenmeyer, Straight Neck)

The DURAN 217713603 is a 250 mL Erlenmeyer culture flask with a straight neck, specifically designed for use with metal caps. Manufactured from DURAN® borosilicate glass 3.3 (Type I / neutral glass), it offers excellent chemical resistance, low thermal expansion, and durability under repeated heating and sterilization.

Its Erlenmeyer shape supports efficient mixing, shaking, and aeration, making it suitable for microbiological cultures and laboratory workflows. The straight neck (~38 mm OD) ensures compatibility with flat metal caps, while the absence of a bead simplifies closure. Depending on supplier variation, some units may include a printed white graduation scale for approximate volume estimation.

A Retrace Code is provided for batch identification and quality assurance. The flask is autoclavable (~121 °C) and supplied non-sterile. It is typically packaged in cases of 10 units.

Features

• Premium DURAN® Borosilicate Glass 3.3: Excellent resistance to heat and chemicals.

• Erlenmeyer (Conical) Shape: Ideal for shaking and aeration in microbiological applications.

• Straight Neck (~38 mm OD): Compatible with metal caps, secure sealing.

• Optional Graduations: Some listings include fired-on white scale for approximate measurements.

• Retrace Code: Batch ID for traceability and quality compliance.

• Autoclavable (~121 °C): Safe for sterilization and repeated use.

• Packaged in Bulk: Typically sold in sets of 10 for laboratory efficiency.

Key Specifications

• Catalogue Number: 217713603

• Capacity: 250 mL

• Material: DURAN® Borosilicate Glass 3.3 (Type I / neutral)

• Shape: Erlenmeyer (conical), straight neck

• Neck Outer Diameter: ≈ 38 mm

• Body Diameter: ≈ 85 mm

• Height: ≈ 149 mm

• Graduations: Varies by supplier (with or without printed scale)

• Sterility: Supplied non-sterile

• Autoclavable: Yes (~121 °C)

• Packaging: 10 units per pack

• Traceability: Retrace Code (batch identification)

Applications

• Culture Media Preparation: Suitable for microbiology and tissue culture labs.

• Shaking/Incubation Use: Erlenmeyer geometry enhances mixing and oxygen transfer.

• Seed Cultures & Small-Scale Experiments: For sample preparation and inoculum development.

• Sterile Workflows: Reusable vessel for autoclaved growth media or sterile storage.

• General Lab Use: Versatile for heating, mixing, and reagent handling at 250 mL scale.