Hot Tub Things pH & Alkalinity Down - Alkalinity Decreaser for Hot Tubs & Spas - pH Down for Pools, Maintains Clear Water, Gentle on Equipment, Easy Water Balance Solution for Spas & Pools - 1.25 lbBrand: Hot Tub Things Features: MAINTAINS WATER BALANCE: Hot Tub Things helps lower pH and alkalinity levels with its hot tub alkalinity decreaser and ph down for hot tub, ensuring your water stays crystal clear and inviting. Properly balanced water boosts your spa experience and creates a relaxing environment every time. GENTLE ON WATER AND SURFACES: This spa alkalinity decreaser softens water, making it gentle to your skin and preventing irritation.