Wet & Forget 800006 Moss, Mold, Mildew & Algae Stain Remover, 1 Gal (Pack of 2)

Can be used for moss, mold, mildew and stain removal on any exterior surface. Safe for any outdoor surface Safe for use around plants Non-Caustic, Non-Acidic, and No Bleach Product Features You will receive 2 (1 gallon) bottles per order Requires no scrubbing, no rinsing and no pressure washing (saving water) Surfaces stay clean for 1+ years in most cases Bleach-free, phosphate-free, biodegradable Safe to use around landscaping Concentrate makes 6 gallons Unlimited shelf life & Biodegradable