Finlandia / Harvia Part # FH128 Terminal Block & Wiring Harness is a complete replacement kit designed to provide secure and efficient electrical connections for sauna heaters. Constructed from durable, heat-resistant materials, this set withstands the high temperatures and humidity typical of sauna environments, ensuring long-lasting performance. The terminal block and wiring harness are engineered for straightforward installation, allowing seamless integration into your heater’s electrical system. By maintaining stable power distribution and preventing loose or faulty connections, the FH128 kit supports safe, reliable, and efficient operation of your sauna heater, contributing to consistent performance and extended system longevity.