Regular Duty/Concealed Automatic Door Bottom with Silicone Bulb Seal (7053CA), SMS #6 x 1/2'' Supplied, (23/32'' W x 1-9/16'' H, 42'' L)

Worked great cut down the noise

Although this is a nicely made product it is missing any internal seals to stop air making its way over and around the part that drops. It therefore doesn't actually seal your door. It drops to cover / fill the gap, but air can still pass thought, albeit taking a slightly longer route.

The stiff rubber seal has dents that create gaps when rubber is extended to the floor. As i had already mortised, cut length and routed groove, i didn't want to bother returning, so had to insert 1/4 dowel the length of the hollow rubber in attempt to flatten it out. Is better, but not a great seal.

The media could not be loaded. It works so well. I got a solid core door and routed out the bottom and installed. It work perfectly. I will be buying again.

Took about a half hour to install. Router a slot in the bottom of the door, installed, rehung door and adjusted.