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![Balboa M7 Flo-Thru Spa Heater 4.0 kW [2" x 15"] [240v] W/Stud (58104) Spa Parts: Spa Heaters (Balboa Spa Heaters) 58104](http://bathparts.com/cdn/shop/files/58104_1024x.jpg?v=1767109298)
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Complete 4 kw Heater assembly with new sensors
Heater Tube Complete
used with Keys 100-D Control Box
Replaces:
| Housing Configuration | Straight |
| Heater Length | 15" |
| Lead End Terminal Location | 4-1/4" |
| Threaded Tap Orientation | None |
| Threaded Tap Location | 13" From Leading End, 2" From Leading End |
| Kilowatts | 1.0kW, 4.0kW |
| Voltage | 115v, 230v |
| Sensor Stud Orientation | None |
| Mounting Stud Type | None |
| Heater Size | 2" |
| Heater Application | Balboa Water Group |