Mantis 4222 Tiller Aerator Attachment Aerator Attachment for all Mantis Tiller/Culitvators Slices thousands of tiny slits into the lawn to reduce soil compaction and allow beneficial nutrients and water to reach grass root systems. Lets in air and water, which promotes the activity of beneficial soil microorganisms, and encourages healthy lawns. Four sets of tempered steel blades Easily attaches to any Mantis Tiller/Cultivator