Chapin Chapin 4710 HydroFeed 1-Gallon In-Line Auto-Mix Fertilizer Injector System

The Chapin 4710 is similar to the fixed rate fertilizer injectors in that they water your lawn and garden by targeting only the area that needs to be fertilized. Differences in this product line include a much larger tank size, and a way to adjust the amount of product being used. You can choose 1 oz – 10oz. of product for every 1 gallon of water. This line of HydroFeed® is perfect for users that have many different kinds