This durable leak-proof replacement pan fits our Ferret Nation & Critter Nation series by Midwest Homes for Pets. The replacement pan is compatible with our small animal cage model numbers 142, 182, 143, 162, 163. This pan measures 34.5L x 22.5W x 1.12H inches & is a replacement pan for the 2nd- story (top pan w/ cut-out) of our Ferret Nation/ Critter Nation cages. The durable replacement pan is made with a flexible polypropylene plastic mixture which is odor resistant, easy to clean and stronger than other replacement pans that are made of ABS plastic. Additionally, our replacement pans are injection molded during the manufacturing process making them more flexible / durable than competitors who vacuum seal their pans during the manufacturing process. We at Midwest Homes for Pets understand that your cat or small animal is a part of your family and that's why we ensure our products are manufactured with the highest quality control standards creating a safe product for your pet that you can feel confident with. Midwest Homes for Pets stands behind the quality of our products with a 1-Year Manufacturer's Warranty. If you have any questions about our replacement pans our customer service department would be glad to help you. Midwest customer service can be contacted at: 1-800-428-8560, available 9:00 AM - 4:00 PM, Monday - Friday.