Verified sizes and exact SKUs

DuraFlex Door-Mount Pet Door

$219.99–$299.99

A powder-coated aluminum pet door with a flexible wide-flange vinyl flap and perimeter magnetic closure. The multi-point seal is designed to resist drafts while letting the pet open the flap progressively from the…

SizeMedium - 8.25 x 17.25 in.
Configured price$219.99
SKU AF3-M
1

Configured pet doors are built to order. Verify size, installation type and selections before submitting your order.

Exact catalog pricingEvery selectable option resolves to the verified 2026 retail SKU.
3 verified configurationsChoose only from model combinations supported by the current catalog.
Prepaid standard shippingGround delivery is included for this supplier catalog.
Serviceable designCore wear components can be replaced by size.
Product details

What this model includes

  • Flexible wide-flange vinyl flap
  • Perimeter rare-earth magnets
  • Floating magnetic seals
  • Heavy-gauge aluminum frame
  • Stainless-steel hardware
Medium flap
8.25 x 17.25 in.
Large flap
10.5 x 21.25 in.
Extra-large flap
12.5 x 25 in.
Before ordering

A precise fit starts with the pet.

Measure the pet at the shoulder, confirm width through the chest, then choose the opening surface before selecting a flap package.

If this will live in glass, screen, kennel or an exposed exterior wall, verify the installation path before checkout.

Project check

Measure twice before it is made.

Keep shoulder height, body width, rough opening and frame dimensions labeled separately. Those numbers should agree before production starts.

FAQ.

A closer look at DuraFlex Door-Mount Pet Door

How do I choose the correct size?+

Measure the widest point of the pet and the height needed for a natural passage, then compare those measurements with the exact opening shown for each SKU. Do not transfer a size label from another door family.

Is the wall or patio hardware included?+

Wall-mount models include the matched tunnel, and patio models include the full-height low-e insert. Door-mount models are for compatible hinged doors unless the product page states otherwise.

Can I order a custom opening in this model?+

These products use the verified standard openings shown in the selector. For a non-standard opening, use the custom-size collection instead of altering a listed model in the field.