Ultima Total Control is a fast-acting shock and algaecide in one formula. It combines the anti-algae power of chlorinating compounds and chelated copper for immediate and extended relief from black, green and yellow algae. It shock treats at the same time, leaving your pool crystal clear and contaminant-free.
Shock treats & controls all algae, including black, green, and yellow
Does not affect pH
Improves water clarity by supplementing the chlorine already in the pool