Synthetic Filter Paper Stickers 20 Mm Ptfe Filter Disc 0.3 ?m Filter, 120 Pieces Product Details Overall, Synthetic Filter Paper Stickers are an ideal solution for anyone looking to cultivate mushrooms at home. Our hydrophobic PTFE membrane, high filtration rate, and resistance to heat, pressure, and water ensure that your mushrooms grow in a clean and healthy environment. Our stickers are perfect for multiple uses, making them the most practical and cost-effective solution in the market. Get your hands on our Synthetic Filter Paper Stickers today and start cultivating mushrooms like a pro! 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 120 Filters: Each package contains 120 filters of 20mm diameter and 0.3?m 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. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.