Pool Tool 104C-2 2" Anti-Electrolysis Inline Zinc Anode Heater Inlet Type: Female Buttress

Heater Inlet Type: Female Buttress Thread (fbt)

Also fits Pentair Sta-Rite System 2 Modular Media PLM and D

Gecko AquaFlo 52203000 2

Heater control pressure switch (pressure activated models)

Pacific Spas (Canada)

Pool Tool 104C-2 2" Anti-Electrolysis Inline Zinc Anode Heater Inlet Type: Female ButtressThis is an inline zinc anode that helps protect your metal parts against galvanic corrosion, which can cause discoloration and general erosion. This fits into 2" plumbing, but it is a simple process and doesn't require there to be re plumbing. It features a see through housing that let's you easily remove and replace a zinc anode that has been depleted.