SeaKlear Self-Floccing Defoamer, 1 Quart Bottle Quickly eliminates foam in spas and hot tubs Compatible with all sanitizers Made in the United States Self-floccing defoamer stops foaming and removes the dirt and oils that cause it Quickly eliminates foam in spas and hot tubs Compatible with all sanitizers Use 2-ounce of SeaKlear Spa Self-Floccing Defoamer for every 500-gallon of water Available in 1-quart