Protek has a wide range of foam aeration tubes to fit most nozzles in their range.Please see attached brochure for details. Protek 368 65mm Ajustable Flow Pistol Grip Nozzle Protek 366 38mm Ajustable Flow Pistol Grip Nozzle Protek 361 25mm Ajustable Flow Pistol Grip Nozzle Protek Hydrant Mount for Monitor #699 Protek Dual Flow Foam Nozzle