The HTH Swimming Pool Care Drop Out Flocculant is the solution to take dull and cloudy pool water and quickly turn it into a crystal-clear swimming pool that you can enjoy all season long. This product is easy to use, simply apply the flocculant directly to the pool and follow package instructions for best results. It is compatible only with pools that can vacuum settled material directly to waste and not through the filter, and works with saltwater pools. The pool floc will not affect pH levels or damage filter equipment, while clearing cloudy pool water and improving filtration. The container includes one 1-qt of drop out flocculant for your swimming pool water. Trust HTH Swimming Pool Care Drop Out™ Flocculant to enjoy a crystal-clear swimming pool all season long.