HydroWave HW4 Low-Flow swimming pool in-floor pop up head replacement is designed to replace Caretaker 99 Threaded White style 3-9-515 step and bench nozzles that were originally released in 1981. HydroWave patented design offers the first upper and lower engagement assembly. Our innovative engineering prevents the nozzle from sticking and assures rotation every cycle. Also compatible with Zodiac Polaris Caretaker 99, Aquatech, and HydroClean heads.

HydroWave HW4 Low-Flow swimming pool in-floor pop up head replacement is designed to replace Caretaker 99 Threaded White style 3-9-515 step and bench nozzles that were originally released in 1981. HydroWave patented design offers the first upper and lower engagement assembly. Our innovative engineering prevents the nozzle from sticking and assures rotation every cycle. Also compatible with Zodiac Polaris Caretaker 99, Aquatech, and HydroClean heads.