Synthetic Filter Paper Stickers 20 mm Filter Patch Sticker 0.25 µm Filter Paper for Mushroom Cultivation Wide Mouth Jar Lids (96 Pieces)

Package includes: there are 96 pieces filter paper stickers in the package, sufficient quantity can meet your different needs or replacement in daily life, which are useful items for your mushroom cultivation
Proper size: each 0.25 µm filter paper measures approx. 20 mm in diameter, suitable for most containers and can effectively filter, letting in fresh air and avoiding some bad items, helping your mushroom can grow stronger
Quality material: these filter patch stickers are made of PTFE material, which is resistant up to 120° C/ 248°F temperature, non-toxic and durable for long time to use, providing more convenience for you
Easy to use: you need to clean and dry the surface before pasting the disc filter, and it can be applied under the hole of wide mouth canning jar lids, which can allow for fresh air exchange while preventing unnecessary contaminants from entering
Widely applicable: these filters are widely applied by some producers and family planting farmer, and they are also suitable for wide mouth canning jar lids, steam sterilizers, autoclaves and more

Hello,