HUUM UKU Extension Box – For High-Capacity Sauna Heaters HIIT machine Interior dimensions - 51” long

Interior dimensions - 51” long and 77” diameter

Adjustable Height: Multiple settings for a secure and personalized fit

Cotton Padded Cover & Waterproof Cover

or just warm

The Finnmark FD-2 Sauna Cushion is designed to provide added comfort and support during sauna sessions while maintaining durability in high-heat environments

HUUM UKU Extension Box – For High-Capacity Sauna Heaters HIIT machine Interior dimensions - 51” longProduct Description The HUUM UKU Extension Box is an essential accessory designed to support the safe operation of larger HUUM electric sauna heaters when used with UKU control panels. Required for heaters over 12 kW, this extension box provides the additional power management and system support needed to ensure reliable, compliant performance in higher capacity sauna installations. Built to integrate seamlessly with HUUM UKU Local, Wi Fi, Glass,