1000 Synthetic Adhesive Filter Discs 20mm - Waterproof - E-PTFE - Breathable Vent Filters
1000 Synthetic Adhesive Filters
Size: 20mm
These filter discs are best used on lids , spawn bags, or any container that requires clean air exchange for your culture.
Waterproof, breathable, and pressure cooker safe!
Customer Reviews
Most orders are typically processed and shipped within 1-3 days of payment receipt; or 3-5 days for orders that include fruiting chambers, monotubs, or full grow kits. Occasional product backorder may delay your order for a few extra days. We will do our best to inform you if your order is expected to be delayed longer than 3-4 days. Transit time depends on the delivery method chosen during checkout. While we offer UPS Next Day Air, 2nd Day Air, and 3 Day Select shipping options, this does not guarantee your order will arrive the day after or two days after it is placed. We place orders with express shipping on priority fulfillment and do everything possible to ship them as soon as possible, usually with same day service. UPS express shipping options do not provide Saturday delivery, so orders placed for Next Day or 2nd Day service on Thursday or Friday may not make delivery until the following Monday. Orders with subtotals of over $200 will be shipped with signature required.