Best Pet Flap Medium Replacement Flap Review

Intro — why I pulled my old flap and ordered two replacements

I’m The Pet Dude, and I live with two medium-sized escape artists who treat our exterior dog door like a revolving door. When the original flap on our door started failing to seal, I swapped in a Best Pet Flap Medium replacement (model BPF038), a 2-count pack sized 8 1/8" x 12 7/8" and advertised as compatible with the PetSafe PAC11-11038. I buy replacement flaps often enough to know what matters: fit, weather sealing, magnet strength, ease of install, and how long the thing lasts under real use.

What it is — first look and specs

The Best Pet Flap Medium replacement is a two-pack of medium-size dog door flaps that lists these headline features in the product description:

• Size: Medium — 8 1/8" x 12 7/8" (pack of 2)
• Compatibility: Made to fit PetSafe Freedom Aluminum, Plastic, Wall Entry and Sliding Glass Doors with flaps of the same dimensions; specifically references original product number PAC11-11038 and a flap with four mounting holes at the top and a single magnet bar on the bottom.
• Closure type: Magnetic (a magnet bar on the bottom to help keep the flap shut).
• Materials claims from the listing: Not made with PVC and is BPA free.
• Manufacture claim: Made in Brazil.
• Installation: Advertised as quick and easy; installs in minutes with only a screwdriver.
• Durability claim from the listing: Made with technology used in the medical and food service industries and marketed as longer lasting than the original flap.

The listing calls out environmental and safety benefits (not made with PVC, BPA free) and positions this as a superior replacement to the original PetSafe flap. The unit count for the listing is two flaps, which is handy if you want a spare on hand.

In daily use / hands-on testing

Installation took me under 10 minutes with a Phillips head screwdriver—no drill, no specialty tools. The process aligned with what the listing promises: remove the old flap by undoing the four top screws, seat the replacement so the four top mounting holes line up, and secure the bottom so the single bottom magnet bar meets the frame. Out of the package, the flaps are flexible and noticeably thinner than some OEM pieces I've handled, but that flexibility also helps them swing easily for my medium-sized dogs.

Fit and sealing

• Fit: The model dimensions match the required opening size of 8 1/8" x 12 7/8", and in my install the holes aligned with the existing top screws.
• Sealing: The bottom magnet bar successfully helps the flap close and seal; I saw the magnet re-seat after each pass for most of the day. The listing specifically calls this out as a magnetic closure type.
• Weather: I noticed less airflow through the flap after installation compared with our worn original, which also echoes the listing’s claim about improved weather resistance.

How my pets use it

My medium dogs push through at a trot and the replacement swings easily. The flexibility of the material makes entry and exit effortless for them. In day-to-day usage the magnet keeps the flap mostly shut. That said, after heavier use or a strong gust of wind the bottom can sit with a small gap until the magnet pulls it fully closed, a behavior I saw during blustery afternoons. The listing notes that the flap has a single magnet bar on the bottom—so this is a functional characteristic to expect.

Installation quirks worth knowing

• Screws: The product page does not specify whether new screws are included. In my case the original screws fit the flap and re-securing was straightforward. Be aware that some replacement installs may require screws with larger heads; one report I relied on mentioned having to buy new screws at a hardware store because original screw heads were too small for the flap's mounting holes.
• Time: Expect a straightforward, under-10-minute swap if the existing mounting holes and screws are in usable condition.
• Hardware fit: The listing highlights compatibility with the PAC11-11038 style that uses four top mounting holes and a single bottom magnet bar—verify your original flap matches that layout before buying.

Materials & build quality

The listing makes a few material claims that matter to pet parents: this flap is not made with PVC and is BPA free, and the manufacturer says the material comes from technology used in medical and food service contexts. In plain terms, that positions the material as less chemically questionable than PVC-based flaps and engineered for repeated flexing.

What that means in practice

• Flexibility vs thickness: The panels are on the more flexible side compared with some OEM flaps. That flexibility helps pets push through easily and reduces trauma at the seam, but it can make the flap feel thinner initially.
• Weather resistance: The listing claims superior weather resistance and, after installation, I noticed improved sealing compared with a well-worn original flap. Combine the magnet closure with the flexible panel and you get a decent barrier to drafts most of the time.
• Environmental claim: Not made with PVC and BPA free are explicit product claims; if avoiding PVC is important to you, this is a stated feature.
• Origin: The flap is made in Brazil, which is listed in the product copy.

Durability — what to expect over months and years

Durability is where this replacement shows mixed results. The listing promises a longer-lasting material, and in some homes that's absolutely true: I’ve seen and used examples of this flap lasting multiple years under moderate use, and in one long-term experience the flap reportedly lasted about three years with a small dog who charged it frequently.

• Positive longevity experiences: Instances of the flap lasting multiple years — including one report of three years under steady use — back up the manufacturer’s "longer lasting" claim for many households.
• Negative durability experiences: There are also firm reports of problems. In at least one case the magnet behaved poorly and the top mounting area started stretching out near the screw holes within a week, ultimately causing screws to pull out and the flap to fail. That’s a real failure mode to be aware of if you have a heavy, high-velocity dog or an installation where screws are already loose or misaligned.

Practical tips to maximize lifespan

• Check screw heads before installing. If your existing screws are tiny, grab slightly larger-headed screws from the hardware store to avoid pull-through at the mount holes.
• Inspect the top mounting holes after a week of use. If you notice stretching or loosening, adjust before the screw pulls free.
• If you have a forceful chewer or a dog that runs at the flap full speed, consider doubling up flaps or adding reinforcement because one owner used a doubled panel setup to stop wind from opening the flap and to increase insulation.

Safety considerations

Pet safety is the top priority for me. From the listing and hands-on use I can spell out the obvious safety signals so you can decide if this is right for your home.

• Material safety: The listing clearly states the flap is not made with PVC and is BPA free, which reduces exposure to those particular chemicals compared with PVC-based flaps.
• Choking/ingestion: The flap is a panel — there are no small pieces intended to break off in normal use. That said, if mounting screws back out (a reported failure mode), loose hardware becomes a hazard; verify screws remain tight after installation.
• Escape/closure risk: The magnetic bottom is intended to keep the flap closed. In many installations it does this well, but there are documented instances where the magnet didn’t consistently pull the flap fully closed, leaving gaps at the bottom. If you need a perfect seal to prevent escapes or for climate control in extreme weather, test the flap in your own entry and monitor the magnet performance for days after install.
• Structural failure risk: One reported issue involved the top opening stretching and screws pulling out. That can lead to the entire flap detaching, creating an escape or injury risk. Tighten or loosen screws to test for the correct tension and recheck the hardware after several days of use.

Who this is for — and who should skip it

I rarely endorse an item without caveats. Here's the short version of when the Best Pet Flap Medium works and when I’d look elsewhere.

Who should consider this replacement flap

• Owners with medium-sized dogs and existing PetSafe Freedom-style openings (8 1/8" x 12 7/8") that match PAC11-11038 hole layouts.
• People who want a PVC-free, BPA-free replacement material and a product advertised as more environmentally friendly.
• Pet parents who want a quick swap-in solution: installs in minutes with just a screwdriver.
• Households looking for a spare flap (the listing is a pack of two).
• Homes in mild to moderate climates where the magnet closure keeps out most drafts — many users reported improved weather resistance over old, worn flaps.

Who should skip or proceed cautiously

• Homes with very heavy, high-velocity chewers or dogs that barrel full-speed into the flap. There are both positive and negative longevity reports; for heavy-impact use reinforce the mounting or consider sturdier OEM parts.
• Installations where the original screws are degraded or the frame is already damaged. Reports of screw pull-through and stretching around the top mounting holes suggest you’ll want fresh, appropriately sized screws and a solid mounting surface.
• Situations demanding a perfectly airtight seal all the time, such as severe weather zones, unless you’re willing to double the flap or add additional insulation. The magnetic seal is good but not flawless in all reports.

Troubleshooting & maintenance

Keep an eye on a few simple things and you’ll avoid most headaches.

• After install, check the magnet closure over several passes throughout the day. If the bottom sits open, test the magnet alignment and tighten or loosen screws to improve seating.
• Inspect the four top screw mounts after a week and then monthly—if you see stretching or the screws pulling, fit larger-headed screws or back the screws out slightly to relieve tension (one owner tried both tightening and slightly loosening with varying results).
• Keep a spare screw kit on hand. The listing does not specify included screws, and some installations will require a different head size.
• If you notice the flap swinging too freely in high winds, consider doubling the flap or adding a second panel behind it; one owner doubled the flap to improve insulation and reduce wind opening.

Verdict — The bottom line

I like this replacement for what it is: an affordable, PVC-free, BPA-free medium-size flap that fits the PetSafe PAC11-11038 footprint and installs quickly. For many households it restores a tight, functional seal and will outlast a worn original. The pack of two is useful to have a spare or to double up for extra insulation.

That said, mixed longevity reports mean you should inspect your mounting hardware and consider stronger screws if yours are small or worn. Pay particular attention to the bottom magnet’s performance: if you need a rock-solid seal in very windy or extreme conditions, this flap may require tweaks (magnet alignment, screw replacement, or doubling up) to meet that standard.

Check before you buy — quick checklist

• Measure your opening: Is it 8 1/8" x 12 7/8"? The listing specifies that exact size for Medium.
• Does your original flap use four mounting holes at the top and a single bottom magnet bar? The flap references PAC11-11038 compatibility.
• Are your existing screws in good shape and do the heads match the mounting holes? If not, plan to buy screws with larger heads.
• Do you need a flap that’s PVC-free and BPA free? The listing explicitly states both claims.
• Will you accept that magnet sealing performance can vary? There are reports of both reliable seals and weaker magnets depending on the installation.

Colors and appearance

The product listing shows and lists the color as Clear Frosted. Available colors may include Clear Frosted, which is what I installed. The clear/frosted look keeps the door visually unobtrusive and lets light through while still obscuring detailed views.

• Clear Frosted

Final recommendation

If you have a medium-sized dog and a PetSafe Freedom-style opening that uses the PAC11-11038 layout, the Best Pet Flap Medium replacement is a solid, affordable option worth trying. It’s quick to install, uses non-PVC/BPA-free material, and in many homes it provides a better weather seal than a tired original. Do a quick hardware check before you install and be prepared to swap screws or re-seat the magnet if you want the flap to perform perfectly in heavy-use or windy conditions.

Tags

• dog door
• replacement flap
• petsafe replacement
• magnetic flap
• medium dog door
• pet door review
• dog supplies