Amerec Columbia AK Series Matte Black K3 Operating Equipment PackageColumbia K3 Operating Equipment Package for AK Series Generators. Includes steam head. The Amerec Columbia AK Generator operating package gives the bather complete control over their steam bath experience. Featuring a stylish update to Amerec's K60 control, the Amerec K3 control which can be surface mounted inside or outside the steam room. The 3 button digital control display features simple on off at your fingertips, and also alternates between