U and ZL Supports "U" Supports For interior doors gloom, narrow doors and frames Material: High Strength Aluminum SKU Descripción 0009068 U Bracket 350lb 0009070 U Bracket 600lb "ZL" Supports For interior doors gloom, narrow doors and frames Material: High Strength Aluminum SKU Description 0011792 ZL Bracket 350lb 0009072 ZL Bracket 600lb