【5000-Hour Long-Life Transducer Discs】These transducer discs are made from premium, anti-aging, anti- materials—lasting up to 5000 hours as reliable humidifier parts for your electric fire. 【20mm Optimyst Compatible】Designed as compatible replacements for Optimyst parts with 20mm diameter—perfect mist maker for electric heaters. 【Restore Mist & Smoke Effect】If your Optimyst fire lacks mist or has stopped misting, replacing the transducer disc may restore the smoke effect—essential ceramics discs for electric fires. 【Easy Fire Maintenance】A simple replacement part to bring back the misting function—practical transducer discs for DIY fire repairs without professional help. 【Cost-Effective Fire Repair】Before replacing the whole unit, try this transducer disc—an economical solution to fix your smoke effect fire.