Thermwell U37BRH Door Bottom Drip Cap 36 in Bronze

Product Description

The THERMWELL U37BRH is a 36-inch bronze drip cap and door bottom combination designed to seal the gap between the bottom of a door and its threshold. The U-shaped door bottom profiles over the door edge while the integrated drip cap redirects water and blocks air infiltration. It fits doors that are 1-3/4 inches thick and installs using slotted fastener holes that allow for precise lateral adjustment during fitting. This component is installed by carpenters, general contractors, and experienced handymen working on residential or light commercial exterior door weatherization projects. The bronze finish provides a durable, corrosion-resistant appearance suitable for entry and service doors exposed to the elements.

The U37BRH is suited for use on standard 36-inch exterior doors where air and moisture infiltration at the door base is a concern. The combination design eliminates the need for separate drip cap and door sweep components, making it a practical choice for new installation or replacement on residential entry doors. When the vinyl insert wears out, it can be replaced separately using replacement vinyl insert TV 176-740 without removing the entire door bottom assembly.

Key Features

• 36-inch length fits standard exterior door openings
• U-shaped profile fits over 1-3/4 inch door edges
• Integrated drip cap channels water away from the threshold
• Seals against air and moisture infiltration at the door base
• Slotted fastener holes allow horizontal adjustment during installation
• Replaceable vinyl insert — use TV 176-740 for service replacement

Compatibility

Designed for use on 36-inch exterior doors that are 1-3/4 inches thick. Compatible replacement vinyl insert is TV 176-740.

Installation Notes

Installation is performed by a carpenter or qualified installer using basic hand tools. Before installing, ensure the door bottom edge is clean and free of old weatherstripping or adhesive residue. Align the assembly using the slotted holes for proper threshold contact before final fastening. Follow local building codes for exterior door weatherization requirements where applicable.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.