12 Synthetic Filter Discs 90mm for a Buchner Funnel and Cut Them fit"Wide Mouth" Size Used for Mushroom Cultivation: Amazon.com: Industrial & Scientific
Complete Botanical Extraction Filter Kit, Includes 90mm Glass Fil
Coronado by Meade | SolarMax II 90mm Solar Filter set with RichView tuning and 15mm Blocki – Cloud Break Optics