View 2 of *FOR PARTS ONLY* SureFlap Microchip Cat Door Connect with Hub Bundle - Door Opening: The Microchip Cat Door Flap Opening is 5 5/8" (w) by 4 3/4" (h

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View 1 of *FOR PARTS ONLY* SureFlap Microchip Cat Door Connect with Hub Bundle - Door Opening: The Microchip Cat Door Flap Opening is 5 5/8" (w) by 4 3/4" (hView 2 of *FOR PARTS ONLY* SureFlap Microchip Cat Door Connect with Hub Bundle - Door Opening: The Microchip Cat Door Flap Opening is 5 5/8" (w) by 4 3/4" (h