![Therm Products 5.5kW Flo Thru Heater [15" x 2"] [240V] [Cal Spas] [No Box] (C2550-2001) Spa Parts: Spa Heaters (Therm Products Flow Thru Spa Heaters) 26-2001-7S-K.1](http://bathparts.com/cdn/shop/products/26-2001-7S-K.1.jpg?v=1762187900&width=700)
![Therm Products 5.5kW Flo Thru Heater [15" x 2"] [240V] [Cal Spas] [No Box] (C2550-2001) Spa Parts: Spa Heaters (Therm Products Flow Thru Spa Heaters) 26-2001-7S-K.1](http://bathparts.com/cdn/shop/products/26-2001-7S-K.1_1024x.jpg?v=1762187900)
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Replaces: 26-2001-7T-K , C2550-2001 , F2550-2001 , HEA14100430
Aftermarket Replacement for Cal Spa XL Heater
| Housing Configuration | Straight |
| Heater Length | 15" |
| Threaded Tap Orientation | None |
| Kilowatts | 1.375kW, 5.5kW |
| Voltage | 115v, 230v |
| Sensor Stud Orientation | None |
| Mounting Stud Type | None |
| Heater Size | 2" |
| Heater Application | Cal Spas |