Long Neck Flat bottom Flask

Our flat bottom long neck flasks are precision-manufactured borosilicate glass vessels ideal for laboratory mixing, heating, and reaction applications. The flat base offers stable placement on lab benches or hotplates, while the long neck provides convenient handling and minimizes loss from splashing or evaporation.

Constructed from durable, chemically resistant borosilicate glass, these flasks are suitable for use in organic synthesis, analytical prep, sample storage, and educational experiments. Their transparent walls allow clear observation of contents throughout reactions and processes, and they fit easily with common stoppers, condensers, and adapters for flexible lab setups.

Key Features & Benefits

Borosilicate Glass Construction: Heat-resistant, chemical-stable material for dependable lab performance.

Flat Bottom Design: Provides stability on hotplates, stir plates, and work surfaces.

Long Neck: Improves handling and reduces splashing during mixing and heating.

Lab-Ready Compatibility: Works with standard fittings, stoppers, and accessories.

Whether you’re conducting routine reactions, heating solutions, or organizing glassware for instructional labs, these flat bottom long neck flasks deliver versatility and quality you can trust.

Joint sizes other than those listed are available, please call for pricing.

Manufactured with pride in Vineland, New Jersey, USA

All Glassware is individually inspected against manufacturing drawings, and Certificates of Conformity are available upon request to meet QA/QC documentation requirements.