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Drain filter
convenient
Best maintenance choice you can make for water quality is one most owners overlook entirely: starting with the cleanest possible fill water means less work managing chemistry afterward
100% of the time
BioGuard Arctic Blue Shock - 2 lb. Type_Gas Valve Drain filterBioGuard Arctic Blue Shock 2 lb. Overview BioGuard Arctic Blue Shock is the perfect first step in winterizing your pool, killing off bacteria, algae, and other contaminants that can wreak havoc on your pool during the long winter months. Its powerful granular formula can be quickly broadcast into your pool without needing dilution, saving you from handling messy liquids. When used in conjunction with an effective algaecide, your pool will stay clean