# Numhew Blue Rubber Garage Door Threshold Seal Strip, 20 ft. Universal Waterproof Weather Stripping Bottom Door Sealing Kit

**Brand:** [Numhew](https://shop.coreranger.com/brands/Numhew)
**SKU:** O3A5U6Z0
**Price:** $129.46 · in stock
**URL:** https://shop.coreranger.com/product/numhew-blue-rubber-garage-door-threshold-seal-strip-20-ft-universal-waterproof-weather-stripping-bot-343048037

## Specifications

| Spec | Value |
|---|---|
| Model # | O3A5U6Z0 |
| Internet # | 343048037 |
| Returnable | 90-Day |
| Store SKU # | 1015979086 |
| Product Depth (in.) | 240 in |
| Product Width (in.) | 3.7 in |
| Cabinet Product Type | Installation Accessories |
| Product Height (in.) | 0.6 in |
| Builders Hardware Product Type | Door Sweep |

## Description

This universal garage door bottom seal creates a tight barrier between the door and floor to block water, wind-driven rain, snow, dust, dirt, and debris. Made from flexible rubber, it remains functional across extreme temperatures ranging from -40°F to 284°F without cracking, drying out, or deforming. Its serrated base grips securely on concrete, asphalt, painted, or treated surfaces while anti-slip ridges enhance safety during use. The seal measures 20 ft. long, 3.7 in. wide, and 0.6 in. tall, offering broad coverage for standard single and double garage doors. Installation requires no special tools and follows straightforward steps outlined in included instructions. It maintains consistent compression over time, adapting to minor floor irregularities and door movement. Unlike rigid alternatives, this material compresses smoothly when the door closes and rebounds fully when opened. It is intended for residential garage doors where weather resistance and floor-level sealing are priorities.

• Blocks wind-driven rain, snow and other outdoor debris
• Made from flexible rubber that stays intact for long time use
• Anti slip ridges on the surface reduce safety hazards