Set of two replacement S-212 seals for Tarter Gate Rotary Tiller, fits outboard hub. Please see position 12 in the exploded view drawing! Two of these seals are used in the hub back to back and this listing is for two seals. We sell replacement tines and parts for most brands of roto-cultivators., if you don't see them listed here please feel free to give me a call. Part Numbers: S-212 We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.