10-pack 20mm Ultrasonic Mist Maker Fogger Ceramics Discs with Wire and Sealing Ring

Resonant frequency:170MHz; Atomization quantity: 380ml\/hResonant impedance: 52%; Static capacitance:1800pFCeramic disc diameter is 20mm (not include rubber ring)( with ring diameter is 25mm)This Ceramic Disc is mainly used in the household humidifier. The front surface is plated with titanium. Anti-aging, anti-corrosion, durable.colour: as shownMaterial: plastic + ceramicPackage Contents:10 x Humidifie PartsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.