American Hydro Systems 2662 Rid O' Rust Liquid Rust Stain Remover, 4 Gallons

Removes rust stains from exterior surfaces This unique cleaner liquid clings to dissolve rust stains on contact 1 gallon will clean up to 400 sq. ft. when applied with a pump sprayer Formulated to easily rinse away the toughest rust stains, eliminating the need for scrubbing Use on concrete, vinyl siding, decks, patios, fencing, docks, plastic, fiberglass, bricks, boats, wood, and other exterior surfaces