Synthetic Filter Paper Stickers 20 mm PTFE Filter Disc 0.3 μm Filter Paper for Mushroom Cultivation Wide Mouth Jar Lids(390 Pieces)

Features

• High-Filtration Rate and Hydrophobic PTFE Membrane: Our synthetic filter paper stickers are perfect for mushroom cultivation with a filtration rate of 99.97% and a 0.3 m rating. The hydrophobic PTFE membrane ensures durability and resistance to water damage.
• Strong Adhesive and Heat-Resistant: Our filters use a strong adhesive patch that can withstand high temperatures and pressure. They will not easily fall off when applied properly, ensuring long-term use and efficiency.
• Waterproof and Air Exchange Enabled: Our filters are fully submersible and waterproof, making them immune to water damage. They also allow for air exchange, ensuring your mushrooms grow in a clean and healthy environment.
• Non-Toxic and Durable: Our stickers are made of non-toxic and durable PTFE material, which makes them ideal for long-term use. They are resistant to high temperatures and pressure, and will not deteriorate or lose their functionality with time.
• Package Includes 390 Filters: Each package contains 390 filters of 20mm diameter and 0.3m micron rating. With such a high quantity, our filters are perfect for multiple uses, ensuring you have enough for a variety of mushroom cultivation projects.