Conical funnels to ISO 4798:1997 (35mm, 55mm, 100mm, 150mm top only); made from DURAN borosilicate glass 3.3 to ISO 3585:1998; glass class 1 to USP, EP & JP.

Tightly controlled glass quality, wall thickness and geometry ensure high resistance to thermal shock giving long service. Particular suited for use with hot or aggressive chemicals thanks to the excellent thermal shock and chemical resistance. Long stem and short stem available for 55mm, 70mm and 80mm top.

Other sizes available upon request.