The double bar film applicator has two gap clearances. The U Bar design channels the coating for an accurate film width
 
Multiple Clearance Applicator
U shaped 
3", 6 & 10 mils
Stainless steel construction
Gap Clearance: 152.4 & 254.0 m (6 & 10 mils)
Film Width: 76.2 mm (3 in)