Spa Choice 472-3-2031-04 Foam Free for Spas and Hot Tubs (4 Pack), 1 pint Eliminates foam from your spa or hot tub quickly Spa Choice Foam Free eliminates annoying foam build-up in spas, hot tubs, fountains, or other places where foam can be a problem Use as often as needed to prevent foam build-up Designed For Hot Water Application Downloadable User Guide Available Under Product Information: Technical Specifications