Finlandia / Harvia Part # F40-D Timer/Thermostat Knob for D shaped shaft (notes: for Blue & White) is a precisely fitted replacement control knob designed to restore smooth, accurate adjustment on compatible Blue and White series Finlandia and Harvia units. Engineered to lock securely onto a D-shaped shaft, it provides firm, slip-free rotation so users can confidently set time or temperature without misalignment or drift. Its durable construction withstands the warm, humid conditions typical of sauna environments, maintaining its shape and grip through frequent use. The knob’s clean profile offers clear tactile feedback, making fine adjustments easy even when lighting is low. Ideal for refreshing worn or cracked originals, this genuine Finlandia / Harvia control knob ensures your timer or thermostat continues to function with the precision and reliability intended by the manufacturer.
Finlandia / Harvia Part # F40-D Timer/Thermostat Knob for D shaped shaft (notes: for Blue & White) is a precisely fitted replacement control knob designed to restore smooth, accurate adjustment on compatible Blue and White series Finlandia and Harvia units. Engineered to lock securely onto a D-shaped shaft, it provides firm, slip-free rotation so users can confidently set time or temperature without misalignment or drift. Its durable construction withstands the warm, humid conditions typical of sauna environments, maintaining its shape and grip through frequent use. The knob’s clean profile offers clear tactile feedback, making fine adjustments easy even when lighting is low. Ideal for refreshing worn or cracked originals, this genuine Finlandia / Harvia control knob ensures your timer or thermostat continues to function with the precision and reliability intended by the manufacturer.