Quart Bottle of Super Concentrate makes 32 gallons of general purpose cleaner (2-oz per gallon of water), or 16 gallons of professional strength cleaner (4-oz per gallon of water). The quart is ideal for Hot-Tub and Spa cleaning and for small localized flood water cleaning. Note: Each gallon of mixture will clean from 150 sq.ft. to 200 sq. ft. depending on how much spray is applied. One Quart can cover approximately 2,400 sq. ft. with a 2-ounce per gallon mixture ratio.