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copper-based formula designed to kill and prevent all common types of pool algae — including black
UV-resistant plastic with locking twist cap
and odorless
Lo-Phos Max supports cleaner
and fine particles
Knockdown High Performance Flocculant Returning an empty bottle?:Yes copper-based formula designed to killDrop unfilterable debris for clear water. Fast. When clouds of debris make your pool look less than perfect, Knockdown delivers. This high performance, non alum flocculant binds fine particles into heavy clumps that sink to the bottom so you can easily vacuum them away. Unlike clarifiers that slowly burden your filter, Knockdown works fast with the pump off, restoring crystal clarity overnight. Its effective over a wide pH range, safe for all
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