Works with all water soluble fertilizers and weed killers. Removable fan-spray nozzle for quick coverage of large areas or a continuous stream for more direct application. Durable, chemical-resistant and rustproof polyethylene construction. Fits onto any hose end Delivers up to 20 gallons of finished spray Fingertip on/off control Built-in anti-siphon feature prevents backflow Applications - fertilizers, fungicides, herbicides, weed and feed