HTH 1 Gal. Pool Algaecide Algae Guard 10

This is an effective, non-foaming algaecide product that, when used regularly, will prevent and kill green algae. For best results, use with other HTH pool care products. For crystal clear pool water, follow the HTH 4 step pool care program: Step 1: Test and adjust pool water balance, Step 2: Sanitize, Step 3: Shock treat your pool at least once a week, Step 4: Add algaecide regularly.