Aerification revitalizes turf health by improving water and air movement into the soil, which increases rooting.
It can be done before reseeding a lawn to fill in patches, or to maintain the health of an existing lawn.
All models have two greaseable bronze bushings per rotor for increased wear life.
Spoons are 3/4-inch case-hardened steel and can penetrate down to 4.5 inches. 
Weight tanks  can be filled with sand to give the core aerator additional bite when working hard soil.
All models are iMatch compatible.