Blue Square Q360 Pop-Up Head with Nozzles (White) The Blue Square Q360 Performance Jet is designed to improve the overall cleaning performance with little to no maintenance. The innovative weighted chassis and durable outer housing increase the life of the cleaning system. The "Final Sweep" pivoting motion helps prevent dirt and debris from collecting near the pop-up head. When the cleaning head rotates to the next position, the nozzle sweeps in the opposite direction to clear any remaining debris before it sits flat in the collar. They are installed and removed from the matching Concrete Collar or Vinyl Collar easily with the Blue Square Pro Tool 1, which is equipped with an adapter to attach the tool to any standard pool pole. Includes 3 Jet Nozzles to determine cleaning strength: Small "Low Flow" - 10 Gallons per minute Medium "Dual Flow" - 15 Gallons per minute Large "High Flow" - 20 Gallons per minute Be sure to check out the videos above to learn how to remove the nozzle inserts and other tips and tricks.