M-D 0.5 H X 4 in. W X 36 in. L Mill Aluminum Fluted Top Threshold Silver

Commercial grade aluminum threshold assures years of protection from the elements. Installing a threshold will help to seal out drafts from the bottom of your door. A door sweep is recommended to be used with this threshold to create a weather tight seal.
All season protection against drafts, moisture, dust and insects
Heavy duty aluminum for long lasting seal and durability
Meets code for wheelchair access
Seals gaps up to 1/2" high
ADA approved for handicap access
Ideal for commercial use
Heavyduty aluminum fluted top threshold