200Pcs (two packs) Fast/Medium/Slow speed qualitative filter paper for lab funnel use Dia 7/9/11/12.5/15/18cm
Feature:
Tyep: qualitative filter paper
Size; 7/9/11/12.5/15/18cm
Speed: slow/medium/fast
Qty: 2packs (total inclde 200pcs papers)
