Synthetic Filter Discs 90 mm, Wide Mouth Size, for a Buchner Funnel, Mushroom Cultivation, High Temperature and High Pressure Resistance (16 Pieces) : Amazon.co.uk: Business, Industry & Science
Allure Mist Black Diffusion Circular Filter (1/4 Stop)
Synthetic Filter Discs - Etsy UK
Buy Synthetic Filter Discs 70mm for a Buchner Funnel and fit"Regular Mouth" Size Used for Mushroom Cultivation 24 Online at Lowest Prices in UK. B07KDYMB17