Pentair 4"x6" Metal Flue Collar Kit (77707-0076) mermade 5 HP AquaFlo A Series

5 HP AquaFlo A Series pump with the right internal part

The Hydro-Quip Baja Spas slide kit 5

A side panel helps create part of the external body structure of a compatible robotic cleaner

Replacing both together can help restore a cleaner plumbing layout and improve confidence in the overall system connection

Pentair 4"x6" Metal Flue Collar Kit (77707-0076) mermade 5 HP AquaFlo A SeriesThe Pentair 4"x6" Metal Flue Collar Kit (77707 0076) is a replacement heater component used with compatible Pentair pool and spa heater systems. The flue collar helps connect and support the heater venting path, making it an important part of safe and proper heater assembly configuration. Because heater components are exposed to heat, airflow, and equipment room conditions, worn or damaged venting parts should be replaced with the correct matching