Polaris 3900 Sport Gearbox Assembly Style_Retro Pop Up Heads while the fail-safe design keeps

while the fail-safe design keeps one port always open to protect your system

and more for enhanced durability

Pool Valet improves the poor circulation found in ordinary pools

You can take a fine object like a paper clip or pin and simply inject it into the jets

Polaris 3900 Sport Gearbox Assembly Style_Retro Pop Up Heads while the fail-safe design keepsPolaris 3900 Sport Gearbox Assembly (39 200) The gearbox assembly is manufactured by Polaris for the 3900 Sport model cleaner. It is made from the same high quality materials used for the original factory part. Making this a genuine OEM product that you can trust. This gearbox was designed to work in correlation with a few other components that give it the power and ability to move along and clean the surface of your pool. This assembly sits in