Zodiac DuoClear/Nature2 25K Mineral Cartridge (W28000) flocontrol A correctly matched heater assembly

A correctly matched heater assembly can make a spa feel dependable again very quickly

generic substitution

the pump can feel less protected during everyday use

related internal components

Zodiac DuoClear/Nature2 25K Mineral Cartridge (W28000) flocontrol A correctly matched heater assemblyDesigned for precise equipment maintenance, this outer cartridge element for Sta Rite System 3 S8M500 filter service helps restore the specific function the original part was intended to provide. It restores the larger outer filtration surface that captures fine debris before water returns to the pool. The listed 20 1 4 inch diameter and 18 9 16 inch height help confirm fit during replacement. The part is especially useful for keeping compatible pool,