Thermwell W79/36H Vinyl Door Bottom 1.75x36 in White

Product Description

The THERMWELL W79/36H is a vinyl slide-on door bottom seal designed to close the gap between the bottom of a metal door and the threshold. The profile slides directly onto the door bottom edge, requiring no fasteners or adhesive for a clean, secure fit. At 1.75 inches wide and 36 inches long, this seal suits standard residential and light commercial metal door applications. The white finish blends with common interior and exterior door finishes. Installation is straightforward and is typically performed by weatherization contractors, general contractors, or experienced property maintenance technicians.

This door bottom is intended for use on metal doors in residential and light commercial settings where air infiltration, dust, and light drafts are a concern at the door sill. The slide-on design accommodates standard door bottom profiles without requiring drilling or screwing into the door face. It is commonly installed during initial door setup or as a replacement when an existing door bottom seal has cracked, torn, or lost its sealing profile.

Key Features

• Slide-on installation — no fasteners or adhesive required
• Designed specifically for metal door bottom edges
• 1.75-inch width accommodates standard door bottom profiles
• 36-inch length fits standard single-door widths
• White vinyl construction resists cracking and moisture
• Sold in package quantity of 12 units per package

Compatibility

Designed as an OEM-style replacement slide-on door bottom seal for standard metal doors requiring a 1.75-inch profile width.

Installation Notes

Installation is typically performed by a general contractor, weatherization technician, or qualified property maintenance professional. Before installation, ensure the door bottom edge is clean, dry, and free of debris or old seal material. Slide the vinyl profile firmly onto the door bottom edge until it seats fully across the entire door width. Check local building energy codes for any requirements regarding door and window air sealing in new construction or renovation work.