Clorox Pool & Spa Xtrablue Algaecide 40 oz Catalyst True Blue I-Beam level offers

True Blue I-Beam level offers superior performance in all key areas of user needs and functionality

Cured sealant is mildew resistant

Hot-dipped steel construction

*Do not apply to Bermudagrass when temperatures are above 85°F

Cuts abrasive construction materials

Clorox Pool & Spa Xtrablue Algaecide 40 oz Catalyst True Blue I-Beam level offersKeep 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.