Balboa M7 15" 4.0 kW Spa Heater W/Mounting Stud (58117) deltauv and R185B heater applications where

and R185B heater applications where the supported internal flow-management assembly needs replacement

The gray finish offers a balanced

The Water Tech Catfish sand and silt filter bag is designed for compatible Catfish cleaner applications where finer debris capture is more important than broad general-use filtration

A properly selected set helps restore intended filtration capacity across the full assembly and supports more consistent water care

Balboa M7 15" 4.0 kW Spa Heater W/Mounting Stud (58117) deltauv and R185B heater applications whereA heater with the correct mounting detail can make a replacement feel much more complete, and this Balboa M7 15 inch 4. 0 kW Spa Heater with mounting stud is designed for compatible applications where the original heater has become unreliable and the spa needs both restored heat and proper installation support. A heater replacement should solve more than just the temperature issue. It should also fit the way the spa expects it to fit. The mounting