Powder Funnels Polypropylene provide a reliable means of transferring powdered substances with unstoppable precision. The funnels resist chemical erosion, enabling them to be used with various substances without compromising quality. The distinct shape and makeup facilitate the purposeful and controlled pouring of dry powders, reducing the risk of messes and enabling a trouble-free transaction. Polypropylene powder funnels are best suited for transferring powdered reagents. The unique feature of these funnels is their parallel stem that minimizes the bridging of powder. These funnels are steam autoclavable at 121°C. Material: Polypropylene Brand: PolyLab Code Size Inside φ Stem Length Stem OD(mm) P57221 65 mm 65 22 15 P57222 80 mm 78 30 16 P57223 100 mm 100 33 21 P57224 150 mm 145 30 27