571CW proportional water driven chemical and fertilizer injector

Works perfect. I installed it on a cart to make a portable unit. My only recommendation is to use a metal fitting so you won't have to attach a hose to the plastic over and over. Even the best quality plastic will lose its threads if you repeatedly attach a metal fitting.

Very well constructed for precise injection of fertilizer to my orchids. Lightweight. Have it installed on a handcart and used as a portable device to cart around the house and connect to nearest hose bib. Easy to use. Cost very reasonable.

good