The Rid O' Rust fine particle stain remover is a powder formula that can help to remove stains on concrete, front walk way, even a boat. The powder will not demolish stucco on the house, stone on the walk way, or any shrubs in the garden. There is no need for sprays or sponges just disperse and rinse. Pro Products LLC., was established in 1995 and provides reliable, high quality, cost effective solutions for various water professional's 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.