M-D Building Products Adjustable 3.5 in. x 91 in. Aluminum Threshold with Vinyl Seal, Gray
Energy efficiency can be increased by sealing the bottom of your door with a threshold. This adjustable threshold performs as well as its conventional cousins, however it also have the ability to raise or lower the vinyl seal as required to seal against the bottom of the door. Set screws allow for easy adjustment to seal uneven gaps for a weathertight seal. Color: Gray.