Keep rocks from wedging between the drive wheel and guage wheel. Used in combination with a wheel cover, this also prevents rocks and dirt clods from damaging the tire valve stem.
- 1215 Rigid Mounted planters
- 1225 Rigid Trailing planters
- 1235 Mounted Stacker planters
- 1245 Pivot Transport planters
- 1255 Front-Fold Trailing planters
- 1265 Front-Fold Trailing planters