An important chemical to maintaining squeaky clean water is spa shock. Renew spa shock is a chemical that has oxidizer in it that gets rid of dead organic matter in spa water such as skin, oils, cosmetics, and lotions. Organic matter left in your hot tub can also cause your spa water to smell if spa shock isn't used regularly. When you add hot tub shock to your water on a weekly basis it can prevent the organic matter from clouding your hot tub’s water and clogging your spa’s system. We offer a shock that neutralizes the odor of your spa water, but also allows you the opportunity to experience the wonderful effects of shock aromatherapy. Buy hot tub shock from Hot Tub Things to keep your spa water clean and smelling fresh.