Product review (3 stars): nice unit, but top vent only
this unit looks very nice. It is a top round vent only. I purchased for a rear 3-1/4x10 vent. which I asked the seller if this unit had and was told it was convertible. It's not.  was concerned with the shipping box as it looks like it is a repackaged unit, packed with loose material, but is brand new. the additional parts shipped in a second box with no packing material. I am returning the as I cannot use a top vent unit. return is NOT done using Amazon direct, so I have to pay $61 to return to seller, not happy with this.