MaxSeal® Door Mount Pet Doors
Superior Sealing / Insulating, Security Pet Door
by Security Boss Manufacturing LLC
The MaxSeal® Door Model pet door is available in dual or single flap versions. The dual flap model is recommended for customers seeking an ultimate weather barrier for their home. Single flap models are commonly used in scenarios where an insulating barrier is not required. All Security Boss products are hand built to order. The MaxSeal pet doors® are the best sealing & insulating doors, as well as, the most secure when locked off. We often remark that the MaxSeal® is the only door we would feel comfortable with in our home if we were on vacation, or away from home for any length of time. If you have had experience with any other pet door in the past, you will quickly see that the superior performing MaxSeal® will pay for itself in energy savings, while providing the most security.
The Best Pet Door by DesignTM
Only the finest materials are used in the manufacture of the MaxSeal® doors by Security Boss Manufacturing LLC. This craftsmanship is backed up with a 6 year warranty. MaxSeals® are designed to be maintained forever. This is the last pet door you will need to purchase for your dog. All components are manufactured so that the customer can easily replace, upgrade, or maintain all the main components. The structural integrity of the door and security panel are protected under warranty so that you will always have a superior performing product for the life of your pet.
(All security panels come in white)
WHATS A PLUS+ STARTER KIT?
Any pet door listed with PLUS+ means that it includes everything needed in a New Pet Door Starter Kit. Rather than have to go find these necessary items individually we have bundled it as one comprehensive product. SAVE BIG when ordering bundled vs order after the fact and paying additional shipping. NO ADDITIONAL SHIPPING on this PLUS+ Bundle!








| Flap Size WxH (inches) |
Minimum Rough-Cut Cut in Door (wxh) |
Exterior Frame (overall frame size) (w x h) |
Single Flap Model |
Dual Flap Model |
| Small 6"x 7 1/2" |
8" x 9 3/16" | 9 3/8 x 10 9/16" |
229.23 |
248.62 |
| Small/Medium 7"x 9" |
9" x 10 11/16" | 10 3/8 x 12 1/16" | 238.11 | 262.15 |
| Medium 9" x 12" |
11" x 13 11/16" | 12 3/8 x 15 1/16" | 267.80 | 306.22 |
| Large 11" x 16" |
13" x 17 11/16" | 14 3/8 x 19 1/16" | 332.21 | 389.84 |
| Tall 11" x 20" |
13" x 21 11/16" | 14 3/8 x 23 1/16 | 384.19 | 455.38 |
| Tall Grand 11" x 25" |
13" x 26 11/16" | 14 3/8 x 28 1/16" | 444.08 | 503.97 |
| XL Grand 12" x 24" |
14" x 25 11/16" | 15 3/8 x 27 1/16" | 483.63 | 561.60 |
| Wide Tall 15" x 20" |
17" x 21 11/16" | 18 3/8 x 23 1/16" | 520.92 | 597.76 |
| Mammoth 15" x 24" |
17" x 25 11/16 | 18 3/8 x 27 1/16 | 553.69 | 645.22 |
| Behemoth 15 3/4" x 32" |
17 3/4" x 33 11/16" | 19 1/8 x 35 1/16" | 621.49 | 757.09 |

The MaxSeal® Door Model pet door is available in dual or single flap versions. The dual flap model is recommended for customers seeking an ultimate weather barrier for their home. Single flap models are commonly used in scenarios where an insulating barrier is not required. All Security Boss products are hand built to order.

The MaxSeal pet doors® are the best sealing & insulating doors, as well as, the most secure when locked off. We often remark that the MaxSeal® is the only door we would feel comfortable with in our home if we were on vacation, or away from home for any length of time. If you have had experience with any other pet door in the past, you will quickly see that the superior performing MaxSeal® will pay for itself in energy savings, while providing the most security.
The Best Pet Door by DesignTM
Only the finest materials are used in the manufacture of the MaxSeal® doors by Security Boss Manufacturing LLC. This craftsmanship is backed up with a 6 year warranty. MaxSeals® are designed to be maintained forever. This is the last pet door you will need to purchase for your dog. All components are manufactured so that the customer can easily replace, upgrade, or maintain all the main components. The structural integrity of the door and security panel are protected under warranty so that you will always have a superior performing product for the life of your pet.

Most Secure, Highest Rated
10 Sizes, Small to Behemoth
Fits Doors 1 1/4" - 2"
Starts at $202.86
Pricing starts at: $160.99
Complete pricing chart at bottom of this page
10 Standard Sizes to fit any Pet
Choose Single or Dual Flap version
Dual Flap provides a near perfect weather barrier
125 Reviews Hide Reviews Show Reviews
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Maxseal door mount
Been in a few weeks now. I got the really large size. Seems to work well. It’s just starting to get cold and windy and so far, so good. Seals very nicely and the wind doesn’t blow it open. Was pretty easy to install too.
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MaxSeal Door Mount Pet Door
Quality product and was easy to install. The ordering dept is flexible and was able to adjust my order at the last minute. The cost is a little too high, but it will last for years.
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Great product
Great product and easy to install on your own with the provided instructions. Worth the money
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Top Quality
Best pet door available, hands down.
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Fantastic Customer Service and Product
This is a great pet door but I can not say enough about the awesome level of customer service. Our pet door needed new flaps and I was unable to to find my copy of the original order so I contacted Moore Pet Supplies and they were able to find the order I placed for the original pet door clear back to Sept. 2009. So with that information they were able to tell me the exact size of the flaps I needed which prevented me from ordering the wrong size and having to return them. I ordered the replacement flaps on Tuesday and the were delivered by Fed Ex on Saturday of the same week and FIT PERFECTLY. Great Company! Great Product!! Great Great Great and Friendly Customer Service!!!
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Doing a great job in a southwestern ON blizzard
We've had our door installed almost 4 years and a review is long overdue. This door is excellent! As ontarians we cover all the weather options and it rarely let's them in. We've put the plate in for high winds a max of 3 times. We have the behemoth, as well keeping weather out, it is still easy enough that our cat uses it along with the big dogs. We will absolutely buy another, if that need ever arises. Great quality product
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Love
I wanted to replace our old door with something that wouldn't let in so much cold air. Our old door really didn't fit our dogs either so we were constantly replacing flaps! This door seals great and it locks really well, very pleased.
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Performs great
We live in the foothills in Colorado, so we are constantly being hit with high winds resulting in horizontal rain! The door we had before pretty much let anything and everything in, snow, rain, wind, bugs, etc.. we were not happy until we found this door. Higher cost, but it's definitely well worth the cost. Couldn't be more pleased with the purchase.
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Amazing door!
We couldn't be happier with our purchase! Seals great, locks off so nothing gets through, and it looks great! Very please, thanks again!