Liquid Rake, 16 oz. Hose End Professional: Effective under a wide range of conditions and turf types. Easy To Use: 16 oz hose-end sprayer of treats up to 10,000 square feet of lawn area! Beneficial: Improves water and oxygen penetration into soil; grass grows stronger and healthier. Protection: Minimize damage from mechanical dethatching and related turf problems. 100% Natural and Safe: Treat and control thatch buildup in turf. Nontoxic.