The easy-to-use Siphon Mixer is a great way to apply concentrated water-soluble fertilizers, fungicides, and insecticides through a garden hose. The Siphon Mixer connects directly to a hose bib and the powerful vacuum action siphons distillates at a 1:16 gallon ratio. No-clog unit features a back-flow check valve and is fit for permanent installation. Gardeners should use the Siphon Mixer with a 1/2” hose no longer than 100 feet or a 5/8” hose no longer than 250 feet for best results. Please note that older homes without anti-siphon valves will require the installation of one in order for the Siphon Mixer to operate properly.