Polyquat 60 Algaecide for Swimming Pool, Highly Concentrated, 32 oz | Algae Killer for Black, Green and Mustard Algae, Inground and Above Ground Pools, Professional Grade Treatment

KNOCKS OUT GREEN, BLACK & MUSTARD ALGAE: Maximum-strength Polyquat 60 algaecide for swimming pool use delivers fast-acting knockdown of stubborn green, black, and mustard algae blooms, restoring inviting water clarity so you can reclaim your pool sooner in demanding swim seasons.

POOL ALGAECIDE FOR INGROUND & ABOVE GROUND POOLS: This targeted algaecide 60 scales effortlessly from intimate plunge pools to sprawling resort-style layouts, giving every pool owner a single, go-to pool algaecide for inground pool and above ground pool care.

BEST POOL ALGAE KILLER. Non-metallic, non-foaming formula that will not stain vinyl, fiberglass, gunite, or plaster, and keeps water clear without clouding — clean results with no metal or copper residue.

COMPATIBLE WITH ALL POOLS. This polyquat algaecide works with chlorine, bromine, and saltwater systems and will not disrupt pool chemistry or require pH adjustment, so it drops right into your routine.

SUMMER & WEEKLY ALGAE PROTECTION. Use as a weekly maintenance dose or as a summer or winter algaecide for pool opening and pool closing; one quart treats up to 40,000 gallons for season-long algae prevention.