Polaris 3900 Sport Rear Housing | 39-005 A&A Gamma 3/4 Color Rings the seal is formed by

the seal is formed by the lip compression against the liner and top plate

The same high-grade plastic material was used to manufacture the original factory part

EACH PLUG IS A RANDOM COLOR

Alternate colors can be found at the following links:

Installs outside a pre-reamed 2" PVC riser pipe for secure integration

Polaris 3900 Sport Rear Housing | 39-005 A&A Gamma 3/4 Color Rings the seal is formed byPolaris 3900 Sport Rear Housing (39 005) The rear housing is a replacement part made by Polaris. It is made from the same high grade plastic material that was used for the original factory part. Making this a genuine OEM product. This rear housing was designed to not only be a protective cover for the internal parts of the 3900 Sport but to also allow the water from the pool to flow through and out the backside of the cleaner. This ensures that no