MIRACLE-GRO LIQUAFEEDREFILL*Feeds up to 500 sq. ft. perbottle*Guarantees bigger, morebeautiful plants*Automatically mixes thecorrect amount of plant foodwith water*Attach hose, insert bottleand spray on to feed andwater plants*No mixing, no measuring, nomess*Bottle empties in 15 minutesso you know when to refill*Feeds at even rate producingthe best results*Feeder switches betweenfeeding and water onlyoption*For use with Ace no. 7166168*Pack of 4*Bottle