Fits:  
STAINLESS STEEL HINGED HATCH WITH HANDLE 10" X 20" WHITE
MODEL 50-39151
MADE IN U.S.A.
POLYPROPYLENE; ACETONE PROOF
USES #8 FASTENERS (NOT INCLUDED)
9-5/8" x 19-5/8"
(24.45cm x 49.86cm)
O.D.
13-1/8" x 23-3/8"
(33.35cm x 59.39cm)
Cut Out
11-1/4" x 21-3/8"
(28.57cm x 54.31cm)