Oh no the pool is cloudy again? But didn’t you just clean it? Worry not. You will have no problems when you get yourself some of this Haviland concentrated . This is going to trap and demolish those pesky small particles that keep passing through the filter. Double the strength of Haviland to help increase filter efficient and reduce usage. Unique multivalent cationic polymer. Effective with all products. Super easy to use and works will all filter types. Doesn’t affect water balance Net weight: 1 quart