Clorox Pool & Spa Xtrablue Algaecide 40 oz Catalyst apply to young

apply to young

apply anytime as a preventative treatment or after you see evidence of insect activity

Cured sealant is mildew resistant

Hot-dipped steel construction

Ideal for walls

Clorox Pool & Spa Xtrablue Algaecide 40 oz Catalyst apply to youngKeep your swimming pool clean with Clorox Pool and Spa Xtra Blue. It prevents the growth of green, mustard and black algae. It also kills bacteria and works without changing your pool's pH level. This pool algae killer uses a patented non foaming formula, which keeps it from staining surfaces and makes it safe and suitable for most types of pools. Results in just 24 hours. Salt pool compatible.