This Model is for rectangular dampers, the maximum inflated size is 16" x 38".

The rectangular, or masonry model, of the DraftStopper is designed for use in conventional wood burning fireplaces. If you are not sure which model of DraftStopper is right for your fireplace use a flashlight to ensure whether your damper is circular or rectangular. If your damper is rectangular this is correct model for you.

This original model of the DraftStopper has been available for over 10 years. During this time thousands of homeowners across North America have enjoyed the added comfort and cost saving benefits of this innovative product.

The DraftStopper is manufactured using a proprietary 14 ml. polyurethane material which is very robust despite the harsh fireplace environment. This material is specially formulated to resist pinholes from corrosive creosote as well as extreme weather fluctuations. The DraftStopper has undergone extensive safety testing to ensure it poses no danger in case you accidentally start a fire without first removing the product, it is deemed to be a passive product. If you do start a fire (despite seeing the orange warning label, and, or the DraftStopper and prop device) the pillow will melt, then drop down and smother the fire. Unfortunately, your Fireplace Plug will be ruined.

Elastic loops attach the telescoping prop device to the DraftStopper insuring easy installation. The prop allows you to position the pillow without having to touch the sooty fireplace interior.