Compatible with 48-Inch Models: Radius S-Series RAS708GEM483C3 (S/N 402,082,300-406,294,345 & UP), RAS710CKC48300 (S/N 400,000,000 & Up). Compatible with 52-Inch Models: Radius S-Series RAS708GEM523C3 (S/N 402,082,300-406,294,345 & UP), RAS720GKC52300 (S/N 400,000,000 & Up), RAS720CKC52300 (S/N 400,000,000 & Up). Please refer to the original owners manual in order to verify this is correct part for your machine. This product is brand new and will come in original factory packaging. We are proud to be a factory authorized retailer. We use several different carriers and choose the most economical for the item and destination based on the estimated transit time displayed.