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Easy-to-read color chart: Durable color blocks stay stable
they reduce daily dosing while maintaining a reliable chlorine level for safe
SCH40 PVC construction: Thick-walled
Durable polyester mesh: Built to withstand outdoor pool conditions
The result is clearer water
Haviland Durachlor Combat Extra Brand_Nature 2 Easy-to-read color chart: Durable colorThe Durachlor Combat Extra product is powerful all purpose algaecide that can target any form of stubborn algae. This non staining liquid product is also fast acting and long lasting on the toughest algae formations. Not only will this remove all types of algae, but it includes a special clarifying agent that will help clear up the water fast. All Purpose algaecide Fast acting and long lasting formula Includes a special clarifying agent that helps