22oz ready to use Mildew Stain Remover. Removes mildew stain on contact without heavy scrubbing. Simple to use. Spray on. Scrub lightly & rinse off stains. Safe for use on fiberglass, painted surfaces, rubber, plastic & vinyl headliners, bolsters & upholstery. Special buffered formula will not harm vinyl upholstery or thread. Ideal for home on RV use. Does not waken fabric or thread. Formulated specifically for use on marine upholstery. Will not harm vinyl or stitching.