Miracle-Gro® 1004325 LiquaFeed® All Purpose Plant Food Refill Bottles, 4-PackMakes feeding as easy as watering! Grows plants twice as big! Insert bottle onto attachment and spray on to feed and water plants. Automatically mixes the correct amount of plant food with water. Bottle empties in 15 minutes so you know when to refill. Feeds at even rate producing the best results, bigger, more beautiful plants. 4 Pack Size: 16 ounce Revolutionary new water soluble feeding system Easy to use, insert bottle onto attachment and spray on