Abstract: A rear window assembly for a vehicle comprising a generally rectangular frame having horizontal and vertical sides and being adapted to fit into a rear window opening in the vehicle. Upper and lower channels are disposed in each of the horizontal sides and are adapted to receive at least one closure member. The closure member is adapted to close a portion of the area defined by the frame. A screen having a support disposed around its perimeter is arranged to fit within the frame. The frame is detachably disposed relative to the closure member to fill the area defined by the frame whereby said screen can be readily removed from the frame.