Replacement Coleman and Bestway Top Rail Power Steel Deluxe Series Round Swimming Pool and Coleman Top Rail 18ft x 48in Power Steel Round Swimming Pool Pool Size: Top Rail for 18ft X 48in and 20ft X 48in Metal Frame Pools Compatible with Pool: 90458E Metal Frame Round Pool with Metal T-Connectors Measures 32" L x 3" W x 2 1/8" H Shape: Oval Ends. Color: Brown Use replacement parts that work with your original pool for the best results. This is the Replacement Top Rail for Coleman and Bestway 18ft x 48in Power Steel Deluxe Series Round Swimming Pool with T-Joint. This top rail measures 32-inch length. The brown top rail is oval on both has "male" ends with one hole on each side. Works with metal T-Connectors. NOT compatible with Power Steel Pools. Measures 32" L x 3" W x 2 1/8" H