Ensure optimal performance of your temperature regulation system with the genuine Gestra BK28 15-25 Thermal Regulator Element. This essential spare part is a high-quality insert composed of a stack of bimetallic discs, engineered for precise and reliable temperature control. Designed specifically as a replacement component for the Gestra BK28 series, this regulator ensures your equipment operates efficiently within the specified temperature range by automatically adjusting to thermal changes.