HUUM Mounting CollarMounting Collar for HIVE Flow LS Sauna Stoves, Large The HUUM Mounting Collar L is designed for use with the HIVE Flow LS Sauna Stoves. This collar enhances the aesthetic of your sauna stove and seamlessly integrates the stove with a non combustible wall. Features For use with HIVE Flow LS Sauna Stoves Adds a finished look to your setup Functional element for through the wall installations Designed, engineered, and made in Estonia Dimensions: 23. 2"W