HTH 38 oz. Pool Algae Guard 30

HTH Algae Guard 30 is 3X stronger than HTH Algae Guard 10 – formulated to kill and prevent stubborn green, black and mustard algae. Apply this non-foaming algae guard directly to pool water – and swim just 15-minutes after use.Kills and prevents all algae types including green, black and mustard algaeHTH algae guard 30 contains a 30% concentration of HTH signature algaecide - 3-times stronger than HTH algae guard 10Non-foaming algaecide for your swimming poolSwim 15-minutes after applying algaecide to your pool