[304 Stainless Steel Water Tray& Multi-filter System] Made with durable and high quality stainless steel water tray, which is safe and hygienic for pets to drink from, protecting your furry friends from getting feline acne, also making it easy to clean and maintain . The drinking fountain maintains pure water with a 4-layer circulating filtration system, ensuring every sip is fresh and clean. (Only water tray is stainless steel, the water tank is plastic)