- Simplify your inventory!
- One heater fits many, many applications!
- No more re-scheduled repairs – fix that spa on one visit!
- Increase your customer’s satisfaction!
- Competitively priced with all replacements!
- Be prepared- keep two or three on your truck!
- Universal 15” length (others available by request)
- Universal 4.0kW can replace 4.0 and 4.5kW ratings
- Adjustable grounding and mounting studs
- Adjustable thermowell cover
- Multiple pressure switch ports
- Stainless steel pressure switch plugs
- 2”s heater tailpieces with gasket/o-rings
| Picture | Horizon # | Description | Tube Length | Rating |
 | 46-371-1210 | Flo ThruHeater 4.0KW 2"x15" PS/SI Brett/Caldera | 15" | 4.0kW |
 | 46-371-1199 | Flo thruHeater 4.5KW 2"x15" Hydroquip 5/97-Now | 15" | 4.5kW |
 | 46-320-1165 | Flo ThruHeater Assy 2"x15" PS/TI 4.0kW Brett | 15" | 4.0kW |
