Return SP150iR Price : $39.00 Quantity : **Add To Cart Supersonic SP150iR Mounting Plate Fits: 3W-150iR2 Inline Twin   SP150iR Specifications Width 4.75" Height 4.75" Thickness 0.25" Mounting Hole Spacing 3.40"w x 3.40"h Weight (w/Hardware) 5.1 Oz     Specifications Subject To Change Without Notice