Check the listing for details. Matala 7" Air Diffuser Disc with Weighted Base, MD-7W. Condition: New. Listed at 48.00 USD. Matala 7" Air Diffuser Disc with Weighted Base, MD-7WPrecision perforated slits open when airflow is present and close when airflow is stopped, which increases durability and longevity, as well as cleanliness.Fits 3/8" ID tubing Webb's eBay Store Store Home Store Policies Feedback Shipping Most orders are shipped from our warehouse in Maryland. We warehouse over 95% of the items that we offer, which is a key to our quick order turn-around. Some orders are drop shipped directly from our manufacturer's in various states within the continental US. All orders are shipped via either UPS or FedEx therefore we cannot deliver to PO boxes, please supply a physical address to which we can ship your order. Payment We accept PayPal and the following credit cards: Visa, MasterCard, American Express, and Discover. Please feel free to call with any questions.