Sunnyside 66732 Rust Remover, Liquid, Mild, White, 32 oz, Can, Pack of 6Rust Remover is an environmentally friendly, water based, biodegradable, non flammable remover of rust spots and stains. Rust remover is non corrosive and does not contain phosphoric or hydrochloric acid. It removes most rust spots and stains from interior and exterior surfaces including concrete, toilets, sinks, bathtubs, appliances, clothing upholstery, metal, wrought iron, house siding, sporting goods and more. Unit: QUART UPC: 712256498226 Model