Backpack finish system makes floor cleaning quick and easy. Ergonomic backpack holds 1.5 gal. of solution-allows user to finish a 3000 sq. ft. area with a single fill. Backpack features 3-in. opening for easy refilling. Venting channels and chest and waist straps on backpack provide comfort. Clean Connect"' hose easily connects backpack to trigger handle. Large, easy-to-use trigger dispenses finishing solution right where you need it. No-slip tip on mop handle prevents sliding down walls. Flow"' nylon mop head easily connects to the handle with quick-connect.