Cord produces soft, silky water that won’t turn eyes red or irritate skin. They offer the best value delivering 25% more chlorine production over its lifetime than our industry-leading TurboCells. This saves pool owners 50% or more over conventional chlorine costs. Genuine Hayward TurboCells and Extended Life TurboCells are independently tested and proven by the National Sanitation Foundation (NSF). Non-genuine Hayward replacement cells offer significantly less life and less chlorine.