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The MD BUILDING PRODUCTS 03541 is a brown V-Flex weatherstrip designed to seal gaps around doors and windows, blocking drafts, dust, and moisture infiltration. The V-profile flexes to maintain consistent contact with the mating surface across the full length of the strip. At 17 feet long with a 7/8-inch profile width, this roll provides enough material for a full door perimeter in a single piece or multiple applications from one package. It is installed by general contractors, maintenance technicians, and knowledgeable DIYers working on residential or light commercial weatherization projects.
This weatherstrip is suited for exterior and interior door frames, window sashes, and similar closure perimeters where a compressible V-channel seal is the specified solution. The brown finish blends with common wood and painted door frame finishes. The 17-foot length accommodates standard door perimeters and allows for overlap cuts without requiring a second roll. It is commonly used in residential retrofits, new construction punch-out work, and facility maintenance applications.
Designed as an OEM-style replacement or new-installation weatherstrip for standard residential and light commercial door and window frames requiring a V-profile compression seal.
Installation is performed by general contractors, maintenance technicians, or qualified DIYers and requires no special trade license. Clean and dry the frame surface thoroughly before applying to ensure proper adhesion and seal integrity. Cut the strip to length with scissors or a utility knife and press firmly into the door stop channel or frame groove along the full run. Do not stretch the strip during installation, as this reduces long-term contact pressure and seal effectiveness.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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