HTH® 4400 Hey! Cool Pool® Flip Plop® 2 Part System Winter_Items Engineered for long life and

Engineered for long life and maximum cutting accuracy

non self-sustaining (1955CT) check hinges with non-corrosive 300 Series stainless steel posts and pintles and STA-TITE® Commercial Fastening System™

Square horizontal foam closure strip

Sponge insert for moist heat

Do not puncture or incinerate container

HTH® 4400 Hey! Cool Pool® Flip Plop® 2 Part System Winter_Items Engineered for long life andCrystal clear water made easy; plop it in and flips when empty. Treats 2000 to 5000 gallons. Contains 1 mineral and 1 chlorine cartridge. 2 part system: top half treats water for 6 months & bottom half chlorinates up to 4 weeks. 2 part system: top half treats water for 6 months & bottom half chlorinates up to 4 weeks Easy mineral sanitizing pool care Bacteria fighting minerals Plop it in water & wait until it flips Treats 2000 to 5000 gallons.