WHITE Valterra RV Sewer Hose Compartment Door Assembly Thumb Lock 

 Hatch with thumb lock for sewer hose storage. Paintable UV stabilized plastic. Attaches to PVC pipe (sold separately). Has 8 screw holes.

Outside dimensions:  7 5/8" wide x 6 1/2" high with cutout of 5 7/8" wide x 4 3/4" high   4" inside of the hole

Please let me know if you have any questions.  Thank you, Babette