Laboy Glass 125 mL Erlenmeyer Flask, Heavy Wall Borosilicate with 24/40 Standard Taper Joint, Narrow Mouth Reaction Flask, 2-Pack Jointed Lab Glassware

Laboy Glass 125 mL Erlenmeyer Flask combines the convenience of a conical flask with the leak-tight connections of a standard taper joint. The wide base tapers to a short neck fitted with a precision-ground 24/40 outer joint, allowing direct connection to condensers, adapters, stoppers or tubing with matching inner joints.Made from heavy-wall borosilicate 3.3 glass in accordance with ASTM E438, the flask offers excellent resistance to thermal shock and chemical attack. Each piece is hand-blown and annealed at high temperature to relieve internal stress, so it can be heated with a burner, hot plate or heating mantle and withstand typical laboratory heating–cooling cycles.The 125 mL capacity is ideal for small-scale reactions, titrations, sample preparation and solvent collection in organic chemistry, education and general lab work. The jointed design makes it easy to integrate into reflux, vacuum filtration or distillation apparatus using other standard 24/40 glassware components.Supplied as a 2-pack, these jointed Erlenmeyer flasks provide a practical, reusable option for laboratories that need reliable everyday glassware with standard taper compatibility.

• 125 mL JOINTED ERLENMEYER, 2-PACK – Set of two 125 mL Erlenmeyer flasks with 24/40 standard taper outer joints, ideal for building modular glassware setups in teaching and research labs.
• HEAVY-WALL BOROSILICATE 3.3 – Made from thick-wall borosilicate glass according to ASTM E438, providing excellent resistance to thermal shock and chemical corrosion for repeated heating–cooling cycles.
• SECURE STANDARD TAPER JOINT – Precision-ground 24/40 joint is fully interchangeable and leak-tight with other 24/40 glassware, giving safer, easier assembly than non-jointed conical flasks.
• VERSATILE REACTION & RECEIVING FLASK – Narrow-mouth conical shape is suitable for small-scale reactions, titrations, solvent collection, and use as a receiving flask under reflux or vacuum with adapters and condensers.
• HAND-BLOWN & ANNEALED – Each flask is hand-blown for uniform wall thickness and annealed at high temperature to relieve internal stress, ensuring clarity, durability and long service life in routine lab work.