MMR Fast Mold Removal Professional Instant Mold and Mildew Stain Remover has been a favorite with restoration contractors since 2003. The instant mold and mildew stain remover can be used on concrete wood, cinder blocks, and other porous surfaces. Spray the stain remover on the affected area and it begins working immediately. This mold and mildew stain remover is for both indoor and outdoor use. Simply spray on affected area and the instant mold and mildew stain remover begins working immediately Removes mold and mildew stains in seconds Use the stain remover on concrete, wood, cinder blocks, vinyl siding, drywall and other porous surfaces Ideal for building materials found in attics, basements, and crawl spaces Simplifies tough mold and mildew stain removal Stain remover is for indoor and outdoor use Great for cleaning bath, kitchen, tile, and other household areas A favorite with restoration contractors since 2003 1 gallon container of mold and mildew stain remover