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Gecko IN.THERM 4.0KW Heater Manifold

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Gecko In-Therm 4.0 KW Heater Manifold 0603-416002 " LIMITED STOCK-DISCONTINUED "

  • 4 KW, 240 V
  • Cables attached
  • Only for IN.XM Gecko Power Pack
  • Ships in Blue Casing
  • Gecko Part Number: 0603-416001, 0603-409001, 0603-416002 (Current Number)


Gecko IN.Therm separated from the pack is an intelligent 4 KW remote heater that integrates electronics in its power box. It includes a built in temperature probe and a new water flow detection feature that eliminates the need of a pressure switch. IN.Therm controls multiple power levels on a single element extending its lifetime by heating only when needed. With no moving parts and no adjustments the IN.Therm is hassle free and defines new levels of reliability.

LA Spas Part Number: EL-63100, 5EL-63100

Artesian Spas Part Number: 24-0030-40



  • 2
    heater manifold

    Posted by robert mckay on Mar 28, 2023

    threaded plastic connections-replaced manifold a couple of years ago -no problem-now threads have separated after a few years-have not had on/off for years so why do threads strip?need better housing for the element

  • 5
    This was a replacement for a discontinued item. It was advertised as a direct substitute and that is what it is. 100%

    Posted by Cliff Schmidt on Feb 20, 2022

    Shipping was on time to what was promised.

  • 4

    Posted by Aleksandra Kharlip on Feb 09, 2022

    Good working part, does the job , but a pricey

  • 3
    Did the job

    Posted by John on Dec 18, 2021

    I ordered this part for an older hot tub. It arrived within 10 days and took about 10 minutes to install. Although this site charges the going rate for this part, I cannot understand why they are so crazy expensive. I took my old one apart to see. The circuit board is encapsulated with epoxy but I got enough off to inspect it. I’m an electrical engineer. There may have been $60 worth of parts. All in I expect it’s about $75 to make one of these. Someone is getting rich here. But that’s life. Cheaper than a new hot tub.