Comparison : Item # DX722530, 3.0 Turbo Nozzle 2500
Item # DX722540, 4.0 Turbo Nozzle 2500
Item # DX722550, 5.0 Turbo Nozzle 2500
Item # DX723230, 3.0 Turbo Nozzle 3200
Item # DX723240, 4.0 Turbo Nozzle 3200