Laboy Glass Powder Funnel Flattened Side, 50mm Top O.D., 14/20 Joint - Anti-Clog Heavy Wall Borosilicate 3.3 for Precise Powder Transfer

Laboy Glass Powder Funnel Flattened Side, 50mm Top O.D., 14/20 Joint - Anti-Clog Heavy Wall Borosilicate 3.3 for Precise Powder Transfer

EXACT FIT 14/20 JOINT: specifically engineered with a precision-ground 14/20 standard taper joint. Verified to interchange seamlessly with Tier-1 brands like Chemglass and Ace. Ideal for microscale synthesis and smaller reaction setups requiring a vacuum-tight seal. INNOVATIVE FLATTENED SIDE: Unlike standard conical funnels that trap powder, this model features a unique 60° flattened side. This asymmetric geometry prevents "bridging" (clogging) at the neck, creating a direct flow path for fine powders to slide smoothly into the flask. PREMIUM BOROSILICATE 3.3: Heavy-wall construction designed to withstand thermal shock. Features accurate thermal properties: Annealing Point 560°C, Softening Point 820°C. Meets ASTM E438, Type 1, Class A standards for chemical resistance. SUPERIOR POURING CONTROL: The flattened profile allows the funnel to rest securely against storage containers, stabilizing your hand during transfer. The wide-bore stem design further assists in the rapid addition of reagents without jamming. LABOY PROFESSIONAL GRADE: Built for the rigors of organic synthesis. While generic glass often suffers from uneven joints, Laboy emphasizes strict quality control on grinding tolerances to prevent "frozen" joints and ensure system integrity.