Chlorinators are the easiest way to add Chlorine to your pool. You don't need to remember to add Chlorine to your pool every day! This is a safe and easy way to maintain the desired chlorine level in any size pool. Load your stabilized large or small chlorine pucks and turn it on. Add more pucks every 2 to 3 weeks. Contact PTL Direct to order your chlorinator today! www.PoolsTubsLiners.com/