HTH 4 lbs. Pool Balancer Stabilizer

HTH Stabilizer helps protect and extend the life of chlorine in your swimming pool. If you're using an unstabilized chlorinator, adding stabilizer separately can help slow down the effects of direct sunlight on the chlorine levels in your pool. HTH Stabilizer can be added to the skimmer to help your free available chlorine levels stay between 1 and 4 ppm for healthy swimming. HTH Stabilizer is great for all pool types including vinyl-lined pools and salt water pools.