S.R.B. is a powerful, concentrated spot cleaner which dislodges and removes common stains caused by moss, mildew, leaf, rust, blood, beverage spills, and non-greasy food. S.R.B.’s concentrated, biodegradable formula allows for a full spectrum of dilutions matched to your cleaning needs. S.R.B.’s unique Clean Rinse Technology quickly and easily rinses away the residue with a high or low-pressure washer.