Iron Out Outdoor Rust Remover, 1 Gallon is a premixed, professional-grade liquid designed for easy and effective rust stain removal. This ready-to-use formula works on a variety of outdoor surfaces including concrete, asphalt driveways, sidewalks, decks, patios, fencing, docks, plastic, fiberglass, boats, and areas around the pool. Simply spray it on, rinse, and walk away without the need for scrubbing. It is plant safe when used as directed and is especially effective on sprinkler rust stains, making it a versatile solution for maintaining the appearance of your outdoor spaces. Model Number: