Use these Nava 3" Pool Chlorine Tablets 50 lbs to freshen up the water in your swimming pool. They'll come in handy during those hot summer months when your pool gets used the most. These 3" stabilized chlorine tablets are formulated to be long lasting. Fight off different bacteria that could build up in your pool when it's not being regularly used or cleaned. You can use them in above-ground pools or regular ones. They'll come in handy when you're preparing for your next pool party and want everything to be fresh and clean. These tablets will make a useful addition to the rest of your pool cleaning supplies and products.