DIYvan Sprinter NCV3 Or VS30 Roof Vent Adapter for 14" x 14" opening

WARNING!! Please verify the opening requirement on your Maxxair Fan. Fits a 14" x 14" opening, for the Maxxair Deluxe Series Fan and Fantastic Fan. Patent Pending adapter matches the contour of the OEM roof so a standard RV style vent mounts to a flat surface.  Prevents distorting the roof sheet metal or vent flange and can be used as an aid for locating the fan. They are CNC machined out of UV and fire resistant expanded PVC. The fan mounts to the outside adapter.  Fan adapters work with the Maxxair Deluxe series vent fans. The adapter fits both high and low roofs. If your Maxxair is a 4000K or 4500K please contact DIYvan for a custom adaptor.  Longer screws than came with the vent fan may be needed. The vent adapter's outside dimension is 16 3/4 X 16 3/4.   If you are using a Maxxair vent our adapter fits the deluxe series, other Maxxair fan vents have a wider flange. You will need a wider adapter. Roof Vent Adapter Install procedure: We recommend 3m Window-weld adhesi