Hayward Impeller Ring for TriStar VS, TriStar VS-C, and TriStar XE Pumps | SPX3021R Sanitizer Cartridges & Cells *Treats Above Ground pools up

*Treats Above Ground pools up to 31' Round and In-Ground Pools up to 1 6'x24' Diving and 18'x36' Non-Diving

When installing

Unicel FS-2003

Ultraviolet inhibitors

Hayward Impeller Ring for TriStar VS, TriStar VS-C, and TriStar XE Pumps | SPX3021R Sanitizer Cartridges & Cells *Treats Above Ground pools upThe Hayward Impeller Ring (SPX3021R) is the OEM replacement impeller ring for Hayward TriStar VS, TriStar VS C, and TriStar XE variable speed pumps. This ring seats between the impeller and the pump housing, maintaining the precise clearance needed for efficient water transfer. When the ring wears or becomes damaged, pump output drops and the impeller can sustain accelerated wear replacing it with the correct OEM part restores designed hydraulic