Fits:  
STAINLESS STEEL HINGED HATCH WITH HANDLE 7 X 11 
WHITE
MODEL 39131
MADE IN U.S.A.
POLYPROPYLENE; ACETONE PROOF
USES #8 FASTENERS (NOT INCLUDED)
ID 6-7/8 X 10-7/8
OD 10-1/4 X 14-3/8
CUTOUT 8-1/4 X 12-3/8