90-Day Algicide Returning An Empty Bottle?:Yes Made from UV-resistant

Made from UV-resistant

or when preparing for guest use

and it attaches quickly to any standard 1-1/4" telescopic pole — no tools required

it connects easily to any standard 1-1/2" vacuum hose and 1-1/4" pole — no tools required

and cement pools

90-Day Algicide Returning An Empty Bottle?:Yes Made from UV-resistantLong lasting protection. Just one dose every 3 months This 90 Day Algicide is a powerful, copper based formula designed to kill and prevent all common types of pool algae including black, blue green, and mustard varieties. One treatment lasts up to 90 days, keeping your water clear and protected all season long. The non staining, slow release formula is safe for all pool finishes and works alongside chlorine, bromine, and saltwater systems. It