Thermwell RV37H Vinyl Threshold Insert 1.5x36 Brown

Product Description

The THERMWELL RV37H is a brown vinyl replacement insert designed for Oak Frost King thresholds. It measures 1.5 inches wide by 36 inches long and fits into existing threshold channels to restore the sealing function of a worn or damaged insert. Installers and maintenance professionals use this insert to extend the service life of a threshold assembly without replacing the entire unit. The brown color blends with oak-finish threshold profiles. This insert is sold in packages of 12, making it practical for multi-door jobs or stocking inventory.

This insert is suited for residential and light commercial door threshold applications where an Oak Frost King threshold is already installed. It is a direct drop-in replacement for the vinyl insert component of compatible Oak Frost King threshold assemblies. Note that this insert is not compatible with M.D. thresholds and should not be used in that application.

Key Features

• Brown vinyl construction matches oak-finish threshold profiles
• 1.5 inches wide by 36 inches long for a standard door threshold fit
• Drop-in replacement design — no threshold base removal required
• Packaged in quantities of 12 for multi-door or stocking use
• Not for use with M.D. thresholds

Compatibility

Designed as a replacement insert for Oak Frost King threshold assemblies. Not compatible with M.D. thresholds.

Installation Notes

Installation is typically performed by a general contractor, maintenance technician, or experienced DIYer. Remove the worn insert from the threshold channel before fitting the new insert into place. No special tools are required for most installations. Confirm threshold model compatibility before installation to avoid fitment issues.