Synthetic Filter Paper Stickers, 20mm Filter Patch Stickers 0.25m Synthetic Filter Disc Tape for Mushroom Cultivation Wide Mouth Jar Lids - 64 Pieces

Features

• SYNTHETIC FILTER PAPER ---- These synthetic filter paper stickers can effectively filter, can ensure the circulation of internal air and external fresh air, avoid some bad items, help your mushrooms grow stronger, is an indispensable item for your mushroom cultivation.
• QUALITY MATERIAL ---- Synthetic filter paper made of high quality PTFE has excellent heat resistance and pressure resistance, heat resistance up to about 120C/ 248F, breathable, waterproof, durable, reliable and reusable.
• HOW TO USE ---- The synthetic filter paper has an adhesive on the back, and you just need to attach it to the hole of wide mouth canning jar lids. Tip: The surface of the lid should be cleaned and kept dry before before applying the synthetic filter paper.
• WIDE USING ---- These filters can be applied to wide mouth canning jar lids, can also be applied to steam sterilizers, autoclaves, press cooker, etc. They are widely used by commercial producers and small family planting.
• SIZE & QUANTITY ---- The synthetic filter paper has a diameter of 20mm and can filter 0.25m object. The package contains 64pcs filter paper for mushroom cultivation. Sufficient quantity can meet your different needs.