The M-D Vinyl Concealed Kerf/Channel Fit Under Door Seal features vinyl fins for protection from drafts, moisture, dust and insects. Save on energy by sealing the bottom of the door and keeping the heat or air conditioning from escaping. This product requires a kerf channel on the bottom of the door. It is less visible than most Under Door Seals and is ideal for a more concealed look. Used to replace Under Door Seals on pre-hung doors and requires removal of the door to install in to the kerf channel at the bottom of the door. Before installation, cut to desired length using a hacksaw. Vinyl Under Door Seal with vinyl bulbs and fins for exterior door Seals 3/8-in gap Provides seal between the bottom of the door and threshold Seals to protect against drafts, moisture, dust and insects Save on energy by sealing the bottom of the door to reduce loss of heat or air conditioning Fits standard 1-3/4 in thick exterior door Cut Under Door Seal with hacksaw to desired length Requires door removal for installation The spacing between the kerf inserts is 7/8 in Color/Finish Family: Off-white Manufacturer Color/Finish: Beige Length Measurement: 3-ft Thickness Measurement: 1/2-in Width Measurement: 1-3/4-in Material: Vinyl Other Items Required for Assembly: Yes Package Quantity: 1 Tools Required: Yes Warranty: None Weatherstrip Type: Door CA Residents: Prop 65 Warning(s): Yes UNSPSC: 30141500