Pentair 4"x6" Metal Flue Collar Kit (77707-0076) mermade The Carvin SV skimmer float

The Carvin SV skimmer float is designed for compatible skimmer applications where a floating control component is needed to help the skimmer function as intended

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

The Hydro-Quip Baja Spas slide kit 5

A thermowell helps position and protect a temperature-sensing component inside the heater system

A Flo Thru heater is useful because it provides direct in-line heat within the supported plumbing path while matching systems built around the M7 sensor-style heater platform

Pentair 4"x6" Metal Flue Collar Kit (77707-0076) mermade The Carvin SV skimmer floatThe 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