Please refer to the original owners manual in. Compatible with: Metro 21 Walk Behind MPKA21, MSHN21, MSHN21B, MSKA21, MSKA21B, M216HSP, M216HSPC, M216KA, M216KASP, M216KASPC, M217BHP, M217BSP. 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.