Small chlorine tablets with SmartGuard. These economical and easy to use chlorine tablets are applied directly to the spa via your skimmer or chlorine tablet feeder. They can also be used in conjunction with Aquafinesse™ in the Deluxe Floating Tablet Dispenser for ultimate control over chlorine levels. They dissolve slowly and evenly to give consistent and long lasting chlorination with minimal effect on pH levels. When using Aquafinesse™ maintain chlorine at 3mg/l and shock regularly (at least every 2 weeks) using a Spa Lite oxidising sachet.