These Polypropylene funnels are best suited for transferring powder regents. The unique feature of these funnels is its parallel stem that minimizes bridging of powder. These funnels are steam autoclavable at 1210 C. Material :- Polypropylene HSN CODE:- 39269099 Item No. Particular Packing GSI/PL/57231 200 mm 12 Pcs. GSI/PL/57232 250 mm 6 Pcs.