Feeding Funnels, 24/40 Standard Taper Joint

Crafted entirely from premium low-expansion high-borosilicate glass 3.3, this heavy-duty feeding funnel delivers excellent chemical durability and thermal shock resistance. At 5.5 inches in total height, it is designed with an oversized 4-inch outer top diameter. This wide-mouth geometry maximizes surface area, allowing lab operators to pour bulk materials quickly and cleanly without causing chemical bridging, caking, or bottlenecking at the neck.

Key Functional Benefits:

• High Borosilicate Glass 3.3 Composition: Provides universal chemical resistance against aggressive acids, organic solvents, and extreme temperatures without leaching or fracturing
• Integrated 24/40 Ground Joint: Ensures a stable, flush, and hands-free connection into your boiling or multi-neck reaction flasks, eliminating tipping hazards and sample loss
• Oversized 4-Inch Top Opening: Facilitates rapid powder additions and fluid charging, minimizing the risk of spills and eliminating the need for makeshift transfer tools
• Air-Stress Relief Design: Designed to provide smooth material downflow into the receiving vessel, reducing the backpressure caking often encountered with narrower stems