PetSafe Classic Replacement Flap Size:Large The Catit Magic Blue Refill

The Catit Magic Blue Refill Filter pads are to be used with the Catit Magic Blue Cartridge to successfully reduce hazardous ammonia gases up to 80% and fecal odors by an average of 40%

Brushing Effect: Unique blend of insoluble fiber creates a “brushing” effect as your cat chews to help clean its teeth

Refrigerate after opening and use within one week or freeze

Low-glycemic carbohydrates

PetSafe Classic Replacement Flap Size:Large The Catit Magic Blue RefillOnline Only Item Need a replacement flap for your dog or cats door? Weve got you covered. The Classic Replacement Flap is compatible with your existing Classic Pet Door, Deluxe Patio Panel Pet Door, Wall Entry Aluminum Pet Door (check below to see if you have the old or new model) and Larson Storm Door with Classic Pet Door (old model). The backup pet door flap has a magnet on the bottom to help keep the door closed when your dog or cat isnt coming or