Check the listing for details. High Output 20mm ultrasonic Mist Maker Replacement Discs for water fogger. Condition: New. Listed at 12.97 USD. Visit My eBay Store: The House of Hydro Sizing:Please remove the disc from the unit to size it. The 20mm discs are slightly larger than an American penny. Our 16mm discs are slightly smaller. All House of Hydro products take 20mm discsDescription:You are bidding on (3) 20mm replacement discs for all 20mm mist makers. Our premium, high output discs will fit any 20mm disc mist maker. Our lightweight Ceramic discs are coated in a non-stick ceramic glaze. This allows for a faster vibration, and almost no buildup on the discs. These coated discs can be easily cleaned with vinegar, and returned to its optimal performance. They are the highest quality, longest lasting discs you can buy, lasting up to 5,000 hours! The House of Hydro is the #1 vendor of Mist Maker products on eBay. You will be satisfied! Why Should I Buy From The House of Hydro?Other than the fact that we are great people that take care of our customers... This is a commercial grade mist maker. It is the 20mm disc, not 16mm. Bigger disc = Bigger output! The discs are ceramic and coated in Teflon that is ideal for using in water with a high solids count. The lightweight disc allows for faster vibration, allowing for more fog production, and the Teflon coating provides superior protection against buildup. You will save tons in replacement discs alone! How does it work?Ultrasonic Mist Makers work by creating ultrasonic vibrations that atomize just about any fluid that you put it in. The lighterweight the fluid, the more mist produced. It creates a small boil on the waters surface that releases the "fog". It is VERY quiet compared to most humidifiers. To operate, just set the transducer in the float, place it in your water, and plug it in. Voila! The unit will automatically shut itself down after the water level becomes too low. Check out all our YouTube videos (The House of Hydro) to see step by step DIY instructions for all types of uses. What sizes do you carry? House of Hydro carries 1, 3, 5, 6 (long) , and 12 head mist makers, as well as Hydro-Flo Pro's Waterproof fans, and a variety of LED pond lighting. Shipping Times: We Ship Worldwide everyday! Just choose your country in the shipping tab. See our map of customers around the world! We typically ship within 1-2 business days. Check out this, and all our other videos on YouTube Search "How to Replace your Mist Maker Discs"