Whatman qualitative filter paper, Grade 6 circles, diam. 90 mm, pack of 100 Whatman paper
Savinelli Balsa Filters 6mm - 20 Pack
Corncob Filter - Super Heroes Pipefilter Charcoal - 6 mm - 50 pieces
NiSi SWIFT FS ND Filter Kit with ND8 (3 Stop), ND64 (6 Stop) and ND1000 (10 Stop) for 40.5mm | 43mm | 46mm | 49mm Filter Threads + Case | NiSi Optics USA