Sirona Spa Down

Sun Tropic Verified independent store

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Sirona™ Spa Down is a 2.5 lb granular formula designed to lower high pH and total alkalinity in hot tubs and spas, keeping levels below 7.8 for optimal sanitizer effectiveness. It protects equipment from scale and corrosion while reducing cloudy water. It is compatible with chlorine, bromine, and biguanide systems. Show more