Balboa M7 3.0kW [15" x 2"] Flo-Thru Heater (26-58118-K) terminals An impeller like this is

An impeller like this is useful because it restores the pump’s main water-moving component while preserving compatibility with the newer version of the Executive design

This type of part is especially useful when the original cover pump has failed

5kW flow-through heating assembly

which matters because the right replacement should preserve the original balance of air delivery the spa was designed around

The Intermatic 115V/230V Surge Protector is designed to help protect compatible pool

Balboa M7 3.0kW [15" x 2"] Flo-Thru Heater (26-58118-K) terminals An impeller like this isBalboa 15" 3. 0kW M7 Flo Thru Heater (26 58118 K) is a 3. 0kW replacement heater for compatible Balboa spa systems using a 15" M7 style flow through configuration. Because Balboa produced multiple heater assemblies with similar dimensions, confirming the original part number and connection arrangement is an important step before replacement. M7 style heating systems are designed around sensor based monitoring associated with the heater assembly.