Milliard Pool and Spa Vacuum Head - 13" Wide Handle has spring-loaded locking clips for attaching extension poles. Air-relief valves release excess suction and weighted to allow easier movement on the pool floor and to prevent stress on the filter-pump and accidental damage to pool liners. Compatible with both 1.25 and 1.5 vacuum hoses. Made from ABS plastic to be durable and long-lasting. 13.5 inches wide for faster and easier cleaning. Perimeter vinyl pool safe brushes to help loosen algae.