Wet & Forget, 64 OZ, Ready To Use, Outdoor Spray, Perfect For Small Scale Jobs, With The Simple Pull Of The Trigger Wet & Forget Ready To Use Goes To Work Cleaning Porch Steps, Window Ledges, Boat Seats, Play Equipment Or Any Outdoor Surfaces Plagued With Moss, Mold, Mildew & Algae Stains, No Mixing Required, Bleach Free. Spray & Leave Application, No Scrubbing Or Rinsing, Cleans 60-180 SQFT.