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Installed a Door-Seal from: http://www.AvTek2.com Customer said the following: In 2003 or 2004, I purchased a seal that goes on the fuselage from another door seal company. I spent hours removing the old door seal on the door, so the door channel was clean. I ordered a dual air-chamber seal (AvTek/Aero-Pma-Parts) in December 2007. I recently removed the old seal from the fuselage and installed the new seal on the door. I have flown with it a few times already, and the seal is very tight in flight! The hissing noise I was used to is gone…that was there with the Airframe mounted door-seal. The fuselage-mounted seal is designed to compress as much as necessary after initial installation, and then to hold that compressed state. On the ground, that is fine. But, in flight, as the door is pulled out slightly due to suction, a gap forms between the door and the seal. The Airframe mounted Door-Seal that I discarded made and sold by another company NOT Aero-Pma_Parts/AvTek, maintains its compressed state by design. While... The door-mounted Air Chamber Seal (Aero-Pma-Parts/AvTek) is different. It compresses when the door is closed, but when the door is opened, (in-flight due to differential cabin pressures) it expands to its original size. So, when the door is pulled out slightly during flight, this seal expands slightly to fill the space, so no gap is created. _____________________
...Warm Safe Travels
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Customer comments...some are Critical, we listen
Above complete install Three ↑ Air Chambers where needed This Seal kit is just $99.95 last 20 years Customer comments...some are Critical, we listen and changed 
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another customer -02 Twin Air Chamber Seal just $124.95 Get the Best Door-Seal-Kit |
What do WE Recommend? Buy the -02/-02 Twin AIR-CHAMBER
For 97% of the aircraft...the -02/-02 Door/Airframe Kit is the BEST. $134.95 (-02 goes all around your door, then install the extra -02 ($29.95 more) on your "Airframe", Corners Top & Bottom. The Air Chambers will meet and mesh-together like in a BMW, from the Door & Air-Frame
...We have many choices and kits to choose from, because no 2 doors are the same
Our –02 Twin-Air Chamber Seal will compress while aircraft is on the ground. In flight as the Cabin Pressure increases pushing out the doors...
... our “Air-Chambers” expand and inflates filling the gaps. Other seals fail because they are ridged closed-cell foam rubber or bulbs that resemble "Air-Chambers"
Do not be fooled, No Other competitor Door-Seal has "Air-Chambers". Air-Chambers is the secret, to "Making-a-Better-Door-Seal"
Buy the -02 Twin-Air Chamber Seal Kit Only $134.95 Works on 100% every Aircraft, soon FAA-PMA on Pressurized Models