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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HAPPY CUSTOMER
I had a old doggey door i wanted to change the flapper on but needed more then just that it turns out anyway had to increase cut but sure am happy with the door way better then that door before thanks
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Review on maxseal pet door
I got this pet door for my 3 dogs that are speed demons i have had troubles with previous flaps just tearing when the dogs run through them. had this door over 2 years still not one problem with the flaps or anything in fact. The maxseal seals better then my windows and patio door in my house which is amazing considering the size of this flap. I do live alone as well so the thick security panel that is included with the dog door helps me sleep better at night slide it in place lock it up and i know im safe. This is a great door from moore pet supplies. Thanks again!!
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MaxSeal Pet Door Review
My MaxSeal dog door is truly the best pet door I have every owned. I have two large dogs that run through the pet door 30-40 times a day and the flaps still seal perfectly and I have zero loss of every. This past winter was average, but still cold compared to other parts of the nation, and one would not be able to know I had a dog door through my family room if you couldn't see it. My home sits funny where i can get winds that whip around quite strongly at times, Moore Pet suggested that I get a few of their extreme high wind magnets, that sure did the trick...just adding 3 magnets on the exterior flap made it wind proof on the most windy days. Great product, great company, thanks!
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MaxSeal Doggie Door Review
I bought this pet door for my german shepard about a year ago and could not be any happier with my choice. The maxseal provides such a good seal with all those heavy duty magnets also very durable my dog must run through it 30 times day! Here in North Dakota the winds can really howl at times so i decided to purchase the extreme magnets to help with the wind. I purchased 3 thinking that i would need them all well i only needed 1. They are so strong!! A great door from an excellent company! Thanks again Moore Pet Supplies!!
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Maxseal pet door review
I got this maxseal doggie door for my poodle rex. I live very close to a swampy area and was nervous about snakes and other animals getting in. The maxseal provides such a good seal that i dont think a snake even knows that there is a pet door there but rex knows! it also comes with a beefy security panel to lock into place at night or if im away. I also decided to purchase the optional privacy flap (solid black) instead of clear i dont want any people looking through there it seals just as good as the original flap and i love that peace of mind as well. The magnets work very good too couldnt ask for a better pet door!! Thanks again Moore Pet Supplies!!
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MaxSeal works for Cats too!!
I was looking for a cat door thats big enough for my chubby cat. Hes about 21 lbs, he is such a big cat i was having troubles finding a pet door that fit him. So i stumbled upon Moore Pet Supplies website and figured i would call them and spoke with a very nice sales representative and she recomended the MaxSeal pet door. It was the best choice for my kitty and me he has free range of the yard and home when he pleases i also dont worry about other critters either because it comes with a very thick security panel and seals so well they dont even know its there!! Never once has the flaps blown open from the wind I love this pet door and so does my kitty! Would recommend it to anyone!!
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True quality. No cold leaks.
I'd used the sliding door inserts and single flap doors for years. This dual flap wall tunnel is the way to go. My pug had used dog doors for years, but he was confused by the dual flaps at first. After a day or so he's a pro again. When I saw this product was out of WI, I knew it would work great in MD. I feel no cold drafts anymore, and even the stink bugs don't seem to get through anymore. This product makes the others look cheap. Like anything, you get what you pay for. Don't waste your time buying anything else.
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Excellent Door!
This Maxseal door ROCKS! I spoke with some one in sales and they told me to get the small size which my cat can use no problems! It keeps out the wind and snow and everything else mother nature can throw at it. I wish i would have bought this Maxseal door years ago!
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TOP OF THE LINE CAT DOOR
This door has been FANTASTIC from day 1! I was worried my 8 lb cat wouldn't be able to push through the dual flaps, but she had no problems at all. It took her a few tries to nudge her head at the flap and walk through comfortably, but now shes so used to it, she will RUN through it! Thank you for such an amazing, WELL BUILD cat door!