Synthetic Filter Paper Stickers 20 Mm Ptfe Filter Disc 0.3 ?m Filter, 120 Pieces 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! Product 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 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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!