NAMSAN Dog Door for Sliding Door, Inside Opening 12 x 14 inches Doggy Door for Screen Door, Screen Porch Doggie Door Cat… Price: $40.99 (as of 04/09/2023 20:55 PST- Details)

Namsan is dedicated to researching pet supplies, this pet screen door is authorized by Namsan, which made of quality ABS material, durable and sturdy.
Build-up the provided screws with nuts onto this dog door frame would enough sturdy and never fall down easily, the door flap can be replaced anytime.
Built magnetic into the door frame can keep automatically closing when your dog sliding the screen door, even you can lock the door by the 2 sides blue lock if you would like to prevent your pets from walking freely.