This MD Building Products 3 ft. x 4-9/16 in. x 1-1/8 in. Satin Nickel Aluminum Adjustable Thermal Break Threshold helps seal gaps under your door between 1-1/8 in. - 1-3/8 in. to help make your home more energy efficient for your convenience.
- Heavy-duty aluminum construction with a satin nickel finish
- Seals gaps from 1-1/8 - 1-3/8 in. high between the bottom of your door and the floor to help to seal out drafts
- Use with a door sweep for best results (door sweep sold separately)
- Helps save energy and make your home comfortable
- Adjustable PVC oak finish riser helps provide a weathertight seal against the floor
- Provides all-season protection against drafts, moisture, dust and insects
- 36 in. L