Crystal Blue 15 Lb. Copper Sulfate Smart Crystals 6-Acre Coverage Area Moss & Algae Killer Multi Outlets & Surge Protectors This exterior primer provides outstanding

This exterior primer provides outstanding adhesion to hard woods and metal while resting peeling

Designed for use fully opened or closed

Tintable with 50% of color formula

improved performance

including Briggs and Stratton

Crystal Blue 15 Lb. Copper Sulfate Smart Crystals 6-Acre Coverage Area Moss & Algae Killer Multi Outlets & Surge Protectors This exterior primer provides outstandingEffectively controls most types of algae. Apply by casting copper crystals over floating algae mats, dissolve in water, and spray, or place crystals in porous bag and drag behind boat. Treat a portion of the pond at a time to prevent oxygen depletion.