Flaps are held in place with magnets to keep bad weather from coming in. Three-flap design saves energy during colder seasons. Easy for dogs to push through. Flaps are weather-resistant.
Can be hard to install on certain types of doors.
The frame is built from heavy-duty plastic that can withstand all elements. The flap is easy for dogs to move through. Has a lockout slide to ensure dogs stay when needed.
Instructions for installation can be hard to follow.
Telescoping tunnel allows installation on any door regardless of width. The metal frame is durable against weather. Double-flap design helps keep cooler temperatures out.
Flaps can sometimes get caught, causing them to stay open.
Has a plastic closure system that ensures dogs won't get in or out when you don't want them to. Dual-flap design makes it easy to keep bugs from coming in. Can be mounted in the wall.
Flaps can begin to warp in more extreme temperatures.
Can fit most sliding door frames. Easy to install and take anywhere that you may need. Allows for sliding door to still lock even when dog door is in use. Flap can be kept in place if needed.
Isn't the best if you need something that is insulated.
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