Pentair OptiFlo Side Discharge Above Ground Volute (357213Z) chemicalfeeders and this Polaris and Zodiac

and this Polaris and Zodiac version is a black cleaning head using the 4-9-556 reference

which is especially important in systems that switch between solar and standard circulation paths

This replacement board is designed for compatible Balboa BP7 systems

or no longer visually consistent with the surrounding pool finish

Pentair OptiFlo Side Discharge Above Ground Volute (357213Z) chemicalfeeders and this Polaris and ZodiacThe volute directs water through the pump wet end, so cracks, worn sealing areas, or damaged fittings can quickly affect performance. This side discharge above ground volute is made for compatible OptiFlo pump configurations and helps restore the flow path when the original housing section needs replacement. Side discharge volute for compatible above ground OptiFlo pumps Helps maintain proper water movement through the wet end Useful for repairs