Polaris 3900 Sport Bottom Housing | 39-004 Bio-Dex Algaecide The majority of the parts

The majority of the parts included with this assembly are black except for the restrictor disks which are blue and red

Before replacing the head

low‑visibility finish in earth‑tone pools

SKU 230331

Whether replacing an older A&A Gamma unit or upgrading a system for longevity and resilience

Polaris 3900 Sport Bottom Housing | 39-004 Bio-Dex Algaecide The majority of the partsPolaris 3900 Sport Bottom Housing (39 004) The bottom housing is a replacement part made by Polaris. The same high grade plastic material was used to make the original factory part. Making this a genuine OEM product. This bottom housing was designed to be the housing unit for all of the internal parts. They give the cleaner its power and ability to clean the dirt, debris, and other forms of mulch off the surface of your pool. leaving behind a crystal