Never Rust Plastic Dog Door Medium - Dual Magnetic Flaps

In this review the Petcoming Never Rust Plastic Dog Door is examined for medium dogs up to 45 lb, and the single biggest reason to consider it is its dual-flap design that improves sealing and reduces noise compared with single-flap models. The review covers fit, durability, installation and everyday use; overall the door is aimed at owners who want a rust-free, low-maintenance option for interior or exterior doors and a simple way to control pet access with the included closing panel.

Key Features

• Dual magnetic flaps: Two high-quality magnetic flaps create a tighter seal that keeps wind and rain out while reducing flap noise during use.
• Medium flap opening: The 13.2 in x 7.9 in flap is sized to accommodate most pets up to 45 lb, giving medium dogs reliable passage without excessive opening size.
• Telescoping tunnel fit: Designed for doors or walls 1.02 in to 2.36 in thick, the telescoping tunnel simplifies achieving a neat, flush installation in common door thicknesses.
• Never rust plastic: Constructed of sturdy plastic, the frame resists rust and is suitable for long-term use in interior or protected exterior locations.
• Closing panel and safety labels: The included sliding closing panel lets owners restrict access, and the two pet fire rescue stickers alert first responders that a pet may be inside.

Who It's For

The Petcoming medium dog door is best for owners of medium dogs up to 45 lb who need a rust-free, low-maintenance pet door for wood or metal doors and some thin wall installations. It particularly suits households that value better weatherproofing and quieter operation from a dual-flap design compared with single-flap options.

Those who frequently require a heavy-duty exterior dog door for extreme weather or thicker walls should look elsewhere, as this model is optimized for door thicknesses between 1.02 in and 2.36 in and is made of plastic rather than metal hardware intended for very high-traffic or rough outdoor exposure.

Pros & Cons

Pros

• Effective weatherproofing and reduced noise thanks to dual magnetic flaps.
• Solid value for money with durable plastic construction that will not rust.
• Includes a closing panel and rescue stickers for practical household safety and access control.
• Telescoping tunnel accommodates a common range of door thicknesses for a neat install.

Cons

• Installation experience is mixed; some users may find cutting and fitting the tunnel challenging without basic tools and patience.
• Material and flap quality received varied feedback, so long-term durability in very high-traffic homes may be inconsistent.

Specifications

Product name	Never Rust Plastic Dog Door, Medium
Flap opening	13.2 in x 7.9 in
Recommended pet weight	Up to 45 lb
Door/wall thickness	1.02 in to 2.36 in (telescoping tunnel)
Material	High-quality plastic (never rust)
Included accessories	Closing panel and 2 pet fire rescue stickers
Flap design	Dual magnetic flaps for weatherproofing

Our Verdict

The Petcoming medium dog door is a practical, rust-free option for owners of medium-sized dogs who want improved sealing and quieter operation from a dual-flap design. It represents good value for those installing in standard door thicknesses and who appreciate the included closing panel and rescue stickers; however, buyers should allow time for installation and accept that some users report variability in material and flap longevity.

Frequently Asked Questions

What size dog fits this door?
The medium flap measures 13.2 in x 7.9 in and is intended for pets up to 45 lb.

Will it rust if used outdoors?
No, the frame is plastic and marketed as never rust, though very exposed outdoor locations may still affect long-term wear.

Can the door be closed when needed?
Yes, the product includes a sliding closing panel to restrict access and control pet movement.