Then I have the product for you! The Coolmeister 5000 system will instantly decrease your cooling costs.
Here's how it works:
Simply remove your air register cover.
Apply our patented Cool-lock material

to the underside of the register.
Act now and get this system for 50 easy payments of $19.95!!!!
lol

I got tired of cooling off the bathrooms. By sealing the 2 bathroom vents off, I've increased the flow a decent amount to the main bedroom. Even with the vents closed, they still leaked air. Alot.
Left hole goes to the bedroom. Right hole is the incoming air.
Flexin my gun....
