Features 
Holds two 10” subwoofers
Compatible with F150 Extended/Super Crew years 2004-2008
Downfire Underseat 
Specs 
Air Space: 0.8 Cubic Feet (Per Sub)
Tuning Frequency: 39 Hz
Dimensions 
Size (W x H x D): 50” x 18” x 9” 
Mounting Depth: 5.5”