GORGECRAFT 100PCS 90 mm Qualitative Synthetic Filter Discs Cellulose Filter Paper Circular Funnel Filters Medium Speed Extract Filtration Ashless for Buchner Funnel Mushroom Cultivation auspowers_batchone Brown lenses increase contrast and

Brown lenses increase contrast and depth perception

CE certificated

The suction cup mount works great on windows or for use on your vehicle's dash mount or any flat

38in (35mm) diameter with a 20mm internal gauze pad

also one size fits most just bite down and youre set

GORGECRAFT 100PCS 90 mm Qualitative Synthetic Filter Discs Cellulose Filter Paper Circular Funnel Filters Medium Speed Extract Filtration Ashless for Buchner Funnel Mushroom Cultivation auspowers_batchone Brown lenses increase contrast andGORGECRAFT 100PCS 90 mm Qualitative Synthetic Filter Discs Cellulose Filter Paper Circular Funnel Filters Medium Speed Extract Filtration Ashless for Buchner Funnel Mushroom Cultivation GORGECRAFT 100PCS 90 mm Qualitative Synthetic Filter Discs Cellulose Filter Paper Circular Funnel Filters Medium Speed Extract Filtration Ashless for Buchner Funnel Mushroom Cultivation Color: Clear Feature: ?[High Quality]: Quantitative ashless filter papers are made