Synthetic Filter Paper Sticker 82mm 0.3 μm PTFE Filter Disc Strong Adhesive Patch for Wide Mouth Mason Jar Lid Mushroom Cultivation (18pcs)

Size: 82 mm in diameter Color: white Membrane material:Hydrophobic PTFE Pore size:0.3um Quantity: 18pcs Synthetic filter discs Features: Waterproof ,breathable,high temperture and press resistance,reuseable. 18pcs filter sticker Included ,Great for the for all mushroom growers looking to provide a sterile growing environment with proper air exchange. These filter vent work great for a variety of growing techniques including BRF Jars, Liquid Culture, Spawn Cultivation and may more. Safe for Pressure Cooking and Autoclave Sterilization.

Diameter:82mm,0.3um Pore size,Hydrophobic PTFE membrane,waterproof and air exchange for Mushroom cultivation. Fit for 86mm wide mouth split type Mason Jar lid,directly stick on the ring . High filter rate: these adhesive patches have a filtration rate of 99.97% ,can filter 0.3 μm object ,for gas exchange and keeps contamination out High temperture resistance:these disc filters feature outstanding heat resistance and pressure resistance, which can be applied to your autoclaves,press cooker and steam sterilizer. Strong adhesive: need to clean and dry the surface before sticking filter patch Easy to apply:breathable,durable and reusable