This Elite Super Selective Side Sliding Window Insert features RFID collar tag access and is considered raccoon proof. This side sliding window pet door can accommodate up to 8 programmed collar tags.
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Closer Pets Pet Mate Petmate Cat Mate Microchip RFID Collar Tags Disc Key Replacement 310 for 305 306 Selective Cat Flaps – Petquality Show that love – Pet tags for cat flaps