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The M-D BUILDING PRODUCTS 78196 is a flexible vinyl bulb weatherstrip designed to seal gaps around door jambs and window frames. The bulb profile compresses against the door or sash to block air infiltration, moisture, dust, and drafts at the perimeter. Measuring 0.5 inches wide and 17 feet long, a single roll provides enough material to seal a standard exterior door frame with material remaining for trim cuts. Installation requires no adhesive — the strip accepts nails or staples for a fast, secure mechanical attachment. This product is used in residential construction, remodeling, and weatherization work.
This weatherstrip is suited for exterior door jamb applications in residential settings and can also be applied to window frame perimeters where a compressible bulb seal is appropriate. It is commonly installed by general contractors, carpenters, and experienced DIYers during new construction, door replacement, or energy-efficiency retrofits. The brown color blends with common wood and painted jamb finishes. The 17-foot roll length accommodates a full door frame set in one piece.
Designed as a general-purpose replacement or new-install bulb weatherstrip for standard residential door jambs and window frames where a 0.5-inch vinyl bulb profile is specified.
Installation is typically performed by a carpenter or general contractor as part of a door hanging or weatherization project. Cut the strip to length with scissors or a utility knife before fastening. Secure with nails or staples spaced evenly along the length to prevent gaps in the seal. Ensure the door closes fully against the bulb without excessive resistance that could stress the door hardware.
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