The 47-555-2075 Element 4.0kW Flo Thru,10"(M7 Replacement) is a heater element by Hydroquip.
Heater Application: It’s used in Brett Aqualine, Generic, and HydroQuip heaters.
Heater Element Type: It’s a Flow Thru, Offset type.
Heater Element Connection Size: The terminals are spaced 1-1/4" apart.
Kilowatts: It operates at 1.0kW/4.0kW.
Immersion Length/Depth: It’s 9 3/4 inches long, often referred to as a 10-inch element.
Thermowell Size: None.
Voltage: It’s suitable for both 110v and 230v systems.
Coating: None.
This heater element replaces M7 heater elements and is suitable for use in hot tub assemblies using dual sensor technology (M7). It’s also ideal for installation in other heaters with or without thermowells. The short end of the element is dropped to accommodate the extra sensor on that side of the manifold.
This element's primary users in the hot tub business are those who have hot tub heater assemblies that utilize proprietary M7 dual sensor technology, including Balboa brand heater assemblies. It’s also used in other heaters with or without thermowells.
The part ID 47-555-2075 refers to a generic, universal 4.0kW (or 1.0kW at 115V), 10-inch flow-thru heater element. This element is widely used in the hot tub industry as a replacement for heaters utilizing the popular Balboa M7 dual sensor technology design, as well as systems from Gecko and HydroQuip.
Because this element is compatible with heater assemblies from several major control system manufacturers, many spa brands incorporate these assemblies into their hot tubs.
Here is an extensive list of spa manufacturers who are known to use the M7-style heater assemblies that this element fits:
Aquaterra Spas
Artesian Spas
Balboa Water Group (The manufacturer of the M7 system, this element replaces)
Beachcomber (on certain control boards)
Blue Lagoon
Brett Aqualine
Bullfrog Spas (on certain control boards)
Cal Spas
Caldera Spas
Catalina Spas
Clearwater Spas
Coast Spas
Coleman Spas
Dimension One Spas
Dream Maker Spas
Dynasty Spas
Emerald Spas
Four Winds Spas
Freeflow Spas
Gecko Alliance (Compatible systems)
Great Lakes Spas
Hydro Quip (The primary manufacturer associated with this specific SKU)
Jacuzzi (specific models)
Life Smart Spas
Marquis Spas
Master Spas
Nordic Hot Tubs
Platinum Spas
QCA Spas
Signature Spas
Strong Spas
Sundance Spas
Superior Spas
Thermo Spas
Viking Spas
Vita Spas
Watkins Manufacturing (Brands like Hot Spring, Caldera, Freeflow, Fantasy, etc.)
Wellis (certain models)
The versatility of this part means it is essentially a universal replacement for most modern "flo-thru" hot tub heaters.
