Independent Supplier & Replacement Part Notice
We are an independent parts supplier and are not affiliated with, sponsored by, or endorsed by Watkins, Hot Spring, Caldera, Tiger River, or Solana. These names and their part numbers are used only to identify compatibility.
We offer replacement parts as alternatives to spa-branded parts. When this listing identifies a part as the same original-manufacturer replacement, it is supplied under the component manufacturer’s branding and part number, which may differ from the Watkins or spa-brand label and number. Other compatible alternatives are identified in the individual product listing. Please review the listed specifications, fitment details, and any installation differences before ordering.
Caldera/Watkins replacement 4.0kw 230v Low Flow Trombone Heater. 26" x 6" dual element w/24" pigtail cord & off angle box w 3/4" barbs & pressure switch cable. This heater is used with a low flow circulation pump like the Laing and SilentFlo pumps.
Used on Caldera Utopia and Paradise Series 2002+. Replaces Laing #6595.1, Caldera/Watkins # 72494, 74912
| Heater Application | Caldera Paradise Series, Caldera Utopia Series |
| Kilowatts | 4.0kW |
| Low Flow Heater Assy Style | Stainless Steel |
| Heater Inlet Size | 3/4" |
| Heater Inlet Type | Barb (b) |
| Heater Outlet Size | 3/4" |
| Heater Outlet Type | Barb (b) |
