4 boxes of Delta Breez SLM70-B ( 16 units ) 
1 box = 4 Units, Delta Breez SLM70-B Motor and Grille Assembly
 
70 CFM
Quiet operation at 2.0 Sones
Energy efficiency rating approximately 5.8 CFM/Watt
 
UL approved for ceiling and wall mount installation
 
***Housing can (SLM-A) not included (Housing can SLM-A is available for $40 for 4 units if needed)***