You are buying 4 ceramic plates that are designed to be the most durable plates on the market. They are designed to fit in the: Eloquent, Apline, Living Airm, Spring Air, Flair and the Natures Air. Also fit the XL-15 Classic Breeze AT, Salon, Blaster, Apline-880 and the new "Fresh Air"
4 Pieces Ozone Plates
Measurement: 4 1/2" X 4 1/2"
Alpine - all models - Healthy Living - all models
Better Living - all models - EcoQuest - all models
Living Air - all models - Lightning Air - all models - # Spring Air - all models