One 5-Gallon Container of Salt-Away ConcentrateIf using the Salt-Away Mixing Unit with a 12-ounce (355 mL) reservoir, the coverage is 164,300 square feet (15,264 sq meters). This amounts to 53 reservoir refills. If using the Mixing Unit, the spray nozzle is required.Fills 106 6 fl. oz. (177 mL) Salt-Away Mixing Unit reservoirsCovers 153,700 sq. ft. (14,279 sq. meters)Includes faucet to dispenseDirections:To install, punch out recessed plug in cap. Optional faucet screws into opening.Salt-Away pours directly from opening.