Rid O’ Rust® Liquid Rust Stain Remover is safe for use on concrete, vinyl, asphalt, brick, stone, wood, virtually any exterior surface. Safe for plants when used as directed. Simply spray using a trigger or pump sprayer, watch the stain disappear and rinse completely (do not allow product to dry in place). No scrubbing required! No power washing! It’s that easy. After using product rinse off any plants or grass that were sprayed. Great also for boats, fences, and decks. Always test a small area before using. Pro Products LLC, was established in 1995 and provides reliable, high quality, cost-effective solutions for both in-home water systems and outside irrigation needs. The water treatment specialists at Pro Products offer a wide range of solutions that focus on rectifying problems, testing, cleaning stains, and maintaining the performance of water quality equipment.