BioGuard Banish Pool Algae Preventative, 1 Quart, Fast-Acting, Non-Foaming, Keeps Water Clear, Provides Effective Control of Algae GrowthBrand: BioGuard Color: White Features: Highly Effective Algae Preventative: Our fast acting and highly effective formula prevents a wide variety of algae growth. It is formulated to clear up water while it kills the algae and is approved for use in chlorine and bromine pools with all surfaces or filter types. Quick Results: BioGuard Banish algicide fast acting algae killing formula will produce results in 24 hours. The highly effective blend is