M-D 36-in x 3.75-in Aluminum Door Threshold (Install with Screws)

Provides seal and transition beneath a door. Seals gaps up to 1-in. Screw-down installation (screws included). All season protection against drafts, moisture, dust and insects. 3-3/4-in W X 1-1/8-in X 36-in L. Use in conjunction with a door sweep or bottom door seal to provide a weather tight seal.