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About This Item Quickly and easily create a more soothing spa experience with HTH Spa Defoamer. In addition to effectively eliminating foam this product contains vitamin E to help condition and soften spa water. HTH Spa Defoamer is great for all spas including bromine chlorine and biguanide systems. For best results, use HTH Spa Defoamer as part of your regular HTH Spa care routine. How To Use HTH Spa Defoamer Turn the spa circulation system on and run continuously during treatment to ensure proper mixing and filtration. Shake the bottle before applying the clarifier to your spa water. Refer to on pack instructions for proper dosage. About HTH Spa Care For generations HTH has been leading the way in smart spa care. We do the chemistry so you can just take it easy. From the very first day you open your spa HTH is here to help maintain and problem solve. Our complete range of simple to use no nonsense products empower you to balance sanitize and treat your spa. It is everything you need and nothing you do not. There is nothing more relaxing than taking it easy in sparkling clean water. With HTH your spa is always ready when you are.