PERFECT FOR: Covered patios, screened porches, lanai enclosures CUSTOMIZABLE SIZES: With 5 size options, this pet door is perfect for every size of cat and dog. SCRATCH-RESISTANT SCREEN: Holds up even under the most insistent set of claws. BLOCKING PANEL: Included HDPE blocking panel - nothing goes in or out without permission. TOP RATED UTILITY PET DOOR: Uses only the most durable materials available. The Screen Pet Door by Security Boss Manufacturing is the ideal choice for when an indoor space meets with a covered outdoor space. Think enclosed pools or hot tub rooms, screened porches, covered patios, and lanais. No corners were cut - only the most durable products are used to make Security Boss Pet Doors. The frame of the dog door is crafted from heavy duty aluminum. Aluminum is naturally rust resistant, and the powder coating further deters rusting. This powder coating comes in a white or bronze color. This durable frame is designed to fit inside of doors ranging from 1 ¼“ to 2” thick, and comes in 5 sizes to fit every pet size, from the smallest cat to the largest breed of dog. Our largest pet opening size is 15” by 24”. The swing door flap is also made with powder-coated aluminum, with a no--nonsense swivel hinge. The screen is not your typical screen! We know that pets can sometimes be pretty insistent with their claws. Our Pet Super Screen is scratch-resistant. You can enjoy the airflow of a screen door without sacrificing durability - or letting bugs in! We embedded magnets into the bottom of the swing door, giving the screen pet door a silent but secure closure. Need to fully block access? An HDPE blocking panel with twist-locking screw makes sure no human or animal is going in or out without your permission. A top-loading panel comes standard with this dog door - let us know if you’d prefer a side-loading one instead! We will send your blocking panel in the color that coincides with your choice of frame. Security Boss Pet Doors designs their pet doors with your ease of installation in mind. The straightforward installation process is within the capabilities of any DIY customer. Hit a snag? We have representatives available 7 days a week to help you out - call (608) 781-7385. Security Boss Manufacturing provides a 6 year, limited no-fault warranty on all parts and components. We will repair or replace any component of our screen door mount pet door.