This storage hatch/sewer hatch is designed with convenience in mind. Back plate is constructed to accept a 4" rigid PVC or flexible hose to create a storage area for your sewer hoses or other items. Made of a durable plastic that won't fade or discolor. Paintable with no preparation needed to match any RV exterior.
 
Cut out dimension: 4-3/4" H x 5-7/8" W. Outside dimension: 6-1/2" H x 7-5/8" W. Polar white.
 
Thumb lock.