1/2 oz./gal. (1:256) makes 84 end-use gallons, which is equivalent to: 42, 2-gallon mop buckets. Each 4x1 case makes 339 end-use gallons. 2 oz./gal. (1:64) makes 21.5 end-use gallons, which is equivalent to: 86 quarts. Each 4x1 case makes 344 end-use quarts.