Performance Brackets are concealed on the frame and sash of the unit. They allow the CUDH-NG to reach its Performance Grade (PG) by preventing deflection of the sash stiles.
The number of brackets on a unit will be determined by sash size. On standard products, there will either be zero or one performance bracket depending on size. On StormPlus IZ3 CUDH-NG, there will be zero, one or two brackets, depending on size.