The Expert Chemical 128 oz. Composite Deck Cleaner and Enhancer allows you to keep your composite deck and railings clean and fresh by removing mold and mildew. 1-gal. cleans 100 sq. ft. of decking and 20 ft. of railing with spindles. If your spindles are made of a material other than composite and you only need to clean the handrails, 1-gal. will cover 40 ft.

The Expert Chemical 128 oz. Composite Deck Cleaner and Enhancer allows you to keep your composite deck and railings clean and fresh by removing mold and mildew. 1-gal. cleans 100 sq. ft. of decking and 20 ft. of railing with spindles. If your spindles are made of a material other than composite and you only need to clean the handrails, 1-gal. will cover 40 ft.