15 in. x 20 in. Super Large Replacement Flap For Plastic Frame Old Style Does Not Have Rivets On Bottom Bar;

Ideal Original | Super Large Replacement Flap 15"w x 20"h Fits Ideal Pet Products | FastFit Patio Pet Doors | Sash Window Units | Side Sliding Window Units Super Large or XXL Size: 15"w x 20"h Overall Flap Size: 15"w x 20 1/2"h As measured in door: 15"w x 20"h Important Note: The Ideal Original replacement flaps come in two different models. You will find either a "square" logo imprint on the center of the flap or a "round" logo imprint. Make sure to check your current flap so you can choose the correct model. The two models do vary slightly in size Hints: The "round" logo imprinted flaps began production in early 2007, so chances are that if you purchased your door or patio pet door prior to 2007, you would need the "square logo" imprint flaps. Your flap will have a round style imprinted logo or an imprint with wording that is Rectangular or Square in arrangement. You will need to select this same style when ordering as there is a slight difference in how flaps will fit. There are not interchangeable.