Insulated Foam Quilt
Will help prevent heat loss from the hive during colder weather.
Place a quilt on top of the crown board inside an empty super, then put the hive roof on top.
Available in packs of two quilts per pack of same type to fit National, Smith, Commercial, Langstroth and Dadant Hives.
Photos on main page show how to place the quilt in the hive.