Polaris 3900 Sport Chain (39-126) Style_Vantage Please note that flaps are

Please note that flaps are not included and must be purchased separately

and check that the new head pops up fully and retracts flush when idle

Confirm the spring and head alignment to ensure the assembly pops up correctly without binding

Its low-profile design allows for easy installation in tight spaces

While also providing enough weight to keep the cleaner on your pool's surface allowing it to do the job it was designed to do

Polaris 3900 Sport Chain (39-126) Style_Vantage Please note that flaps arePolaris 3900 Sport Chain (39 126) This chain was designed to be a part of the drive train system which gives the cleaner the ability to move around the entirety of your pool's surface. Cleaning and sucking up dirt, debris, and other forms of mulch leaving behind a crystal clear looking pool. This is located on the wheel sprocket assembly. This assembly is powered by the gearbox which rotates and moves the chain along, dispersing the rotating motion