This durable ceramic ozone plate will fit most of the air purifier models by ALPINE, ECOQUEST, LIVING AIR and VOLLARA.Please Note: Ozone plate(s) will deteriorate over time. If your air purifier operates 24 hours a day, 7 days a week you should expect to replace your ozone plate(s) about every 1-2 years. Ozone plate(s) must be cleaned ones a month. If you still using your glass ozone plate(s), keep in mind that glass plates are no longer in production and all new ozone plates now made of ceramic only.Size: 4 1/2" x 4 1/2"

This durable ceramic ozone plate will fit most of the air purifier models by ALPINE, ECOQUEST, LIVING AIR and VOLLARA.Please Note: Ozone plate(s) will deteriorate over time. If your air purifier operates 24 hours a day, 7 days a week you should expect to replace your ozone plate(s) about every 1-2 years. Ozone plate(s) must be cleaned ones a month. If you still using your glass ozone plate(s), keep in mind that glass plates are no longer in production and all new ozone plates now made of ceramic only.Size: 4 1/2" x 4 1/2"