Therm 3.6kW Hairpin Element [7"] [230V] [Tefel Coated] (25-4129-ET)

Type:	Heater Parts
Mfr	Therm Products
Mfg Part #	25-4129-ET
Hzn Part #	47-238-1005

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TAGS: heaterparts, spaparts, thermproducts

Details

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SEE REPLACEMENT PART: OBSOLETE

For service teams maintaining older and current equipment layouts, Therm 3.6kW Hairpin Element [7"] [230V] [Tefel Coated] (25-4129-ET) provides a practical replacement path with the identifying details needed for accurate ordering. Because heater parts operate in demanding wet environments, accurate matching is essential for safe service. Confirm electrical rating, physical dimensions, and equipment compatibility before installation by a qualified technician. When several versions share the same basic shape, details such as heat transfer performance, face diameter, and color are what usually separate the correct replacement from a close but incorrect match. Before ordering, compare the old component, equipment label, and installation dimensions. Pool and spa parts can look similar across brands, but the final fit often depends on small details such as thread type, face diameter, port size, cord type, gasket style, or series-specific locking tabs.

Matches part number 25-4129-ET for easier cross-checking during repair
Designed for heater system applications from Therm Products
Supports heat transfer performance in compatible heater parts installations
Key identifying details: 7", 230V, Tefel Coated
Confirm compatibility with the equipment model, plumbing connection, and installed component style

Therm Products – Spa Heaters, Heating Elements, Sensors and Control Components

Who is Therm Products?

Therm Products is a manufacturer of heating and control components for pool, spa, and hot tub systems. With decades of experience, Therm Products is known for producing reliable heating elements, sensors, and control solutions that support efficient temperature management and system performance.

What products does Therm Products specialize in?

Therm Products specializes in spa heaters, heating elements, temperature sensors, and control components. Their product lineup includes components used in spa packs and heating systems to regulate water temperature and ensure consistent operation. These parts are essential for maintaining proper heat and system functionality.

Why choose Therm Products parts for your pool or spa?

Therm Products are known for durability, fast heat performance, and reliable temperature control. Their components are engineered to withstand demanding spa environments while delivering consistent heating efficiency. Spa owners and technicians choose Therm Products for dependable parts that restore heating performance and extend system life.

How do you identify and choose the correct Therm Products part?

To select the correct Therm Products component, it’s important to match specifications such as voltage, wattage, heater length, sensor type, and system compatibility. Reviewing model numbers and system requirements ensures proper fit and safe operation. Choosing the right part helps maintain efficient heating and prevent system issues.

Need help finding the right Therm Products part?

At Bath & Spa Parts Online, we carry a wide selection of Therm Products pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.