---
product_id: 62363107
title: "R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8\" W, 3/16\" T"
brand: "frost king"
price: "¥3542"
currency: JPY
in_stock: true
reviews_count: 5
category: "Frost King"
url: https://www.desertcart.jp/products/62363107-r338h-self-stick-rubber-foam-weatherseal-black-blacks-3-8
store_origin: JP
region: Japan
---

# 3/8" W x 3/16" T precision fit 10 ft self-stick easy install Made in USA quality R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T

**Brand:** frost king
**Price:** ¥3542
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the deal on comfort and style—don’t let drafts or noise crash your vibe!

## Quick Answers

- **What is this?** R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T by frost king
- **How much does it cost?** ¥3542 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/62363107-r338h-self-stick-rubber-foam-weatherseal-black-blacks-3-8)

## Best For

- frost king enthusiasts

## Why This Product

- Trusted frost king brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Use Cases:** Ideal for windows, doors, automotive, marine, and even creative tech hacks like speaker soundproofing.
- • **Durability That Lasts:** Extra tough rubber foam engineered to absorb shocks and resist wear over time.
- • **Proudly American-Made:** Crafted in the USA, guaranteeing premium quality and supporting local manufacturing.
- • **Effortless DIY Upgrade:** Self-adhesive backing ensures a quick, no-mess installation—no tools or professionals needed.
- • **Precision Seal for Ultimate Comfort:** Perfect 3/8" width and 3/16" thickness to block drafts and noise with surgical accuracy.

## Overview

The Frost King R338H is a 10-foot long, 3/8" wide by 3/16" thick black rubber foam weatherseal tape made in the USA. Designed for superior shock absorption and durability, it features a self-adhesive backing for easy installation. Perfect for sealing gaps around windows, doors, vehicles, and appliances, it offers a versatile, high-quality solution to enhance comfort and energy efficiency.

## Description

Frost King R338H Sponge Rubber Foam Tape 3/8-Inch wide by 3/16-inch tall by 10-feet long, Black

Review: Used these to seal the gap around the plastic scoops to redirect the TV speaker to the front. - So I used this in an unconventional manner to seal the area around my speaker "scoops" which prevents the TV noise to project behind the TV. The scoopers are great in directing the TV volume to the front, eliminating the sound from projecting to the next room. However, even after attaching the scoops underneath the speakers of the TV, there are still some gaps. I sealed those gaps easily with this weather stripping. It's the perfect, color, length, width, and thickness for that task! It is sticky on one side and attached beautifully to the TV. I'm sure I could use this to line the gap around my doors for a tighter seal to prevent creaking and draft from moving the doors and window but for this task, it was the only one that met my description in terms of cost and length. All in all, I probably only used about 20 cm (7.84 inches) [0.653 feet] of length in total. I didn't need 10 feet.
Review: Used to help seal lint drawer on my GE all in one washer and dryer - I use this rubber foam strip to seal the edges on the lint trap for my GE all in one washer and dryer as recommended by another user and I’m very happy with how it works for this unconventional use. Definitely meets my needs and expectations.

## Features

- The product is 3/8x3/16 BLK Foam Tape
- Easy and simple use kit
- The product is manufactured in United States
- Minimum Compression
- Superior Shock Absorbing.Extra tough and durable.Seals around windows and doors.Many automotive and marine uses.Minimum Compression.Superior Shock Absorbing.Extra tough and durable.Seals around windows and doors.Many automotive and marine uses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BQWWF4 |
| Best Sellers Rank | 108,873 in DIY & Tools ( See Top 100 in DIY & Tools ) 234 in Weather Stripping |
| Brand | Frost King |
| Colour | Black|blacks |
| Country of Origin | USA |
| Customer Reviews | 4.2 out of 5 stars 2,455 Reviews |
| Included Components | No |
| Item Dimensions L x W | 3.05L x 0.01W metres |
| Item Thickness | 0.25 Inches |
| Item Type Name | Rubber Foam Weatherseal |
| Item Weight | 0.6 Ounces |
| Item thickness | 0.25 Inches |
| Manufacturer | Frost King |
| Material | Rubber |
| Model Number | R338H |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | R338H |
| Product dimensions | 3.05L x 0.01W metres |
| Recommended Uses For Product | weatherstripping, sealing gaps in vehicles, cushioning and stabilizing appliances |
| Recommended uses for product | weatherstripping, sealing gaps in vehicles, cushioning and stabilizing appliances |
| UPC | 077578012209 |
| Unit Count | 10.0 meter |

## Product Details

- **Brand:** Frost King
- **Colour:** Black|blacks
- **Item thickness:** 0.25 Inches
- **Material:** Rubber
- **Product dimensions:** 3.05L x 0.01W metres

## Images

![R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T - Image 1](https://m.media-amazon.com/images/I/91yYxLoL8KL.jpg)
![R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T - Image 2](https://m.media-amazon.com/images/I/81FHivXOdIL.jpg)
![R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T - Image 3](https://m.media-amazon.com/images/I/8178ZeDOMoL.jpg)
![R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T - Image 4](https://m.media-amazon.com/images/I/71EGs+KpC0L.jpg)
![R338H Self-Stick Rubber Foam Weatherseal, Black|Blacks, 3/8" W, 3/16" T - Image 5](https://m.media-amazon.com/images/I/91N8ATpP99L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Can you double up on it if it's not thick enough?**
A: Yes you should be able to with it being sticky it will stick to itself and double the thickness

**Q: Does it keep dust out?**
A: i used it on my comp , & i haven't had any problems with dust. just be sure to seal it tight when using it. Darlene.

**Q: Could this be used to fill gaps between door sides and frame where bugs are coming in?**
A: I believe so; we used this to fill a gap around our door. The intent was to keep the cold air from coming in during the winter months, but it works to seal the gap, preventing anything from coming in/out (air, bugs, etc.).

**Q: is this double stick?**
A: if you mean double sided adhesive, the answer is no

## Customer Reviews

### ⭐⭐⭐⭐⭐ Used these to seal the gap around the plastic scoops to redirect the TV speaker to the front.
*by A***N on 19 May 2026*

So I used this in an unconventional manner to seal the area around my speaker "scoops" which prevents the TV noise to project behind the TV. The scoopers are great in directing the TV volume to the front, eliminating the sound from projecting to the next room. However, even after attaching the scoops underneath the speakers of the TV, there are still some gaps. I sealed those gaps easily with this weather stripping. It's the perfect, color, length, width, and thickness for that task! It is sticky on one side and attached beautifully to the TV. I'm sure I could use this to line the gap around my doors for a tighter seal to prevent creaking and draft from moving the doors and window but for this task, it was the only one that met my description in terms of cost and length. All in all, I probably only used about 20 cm (7.84 inches) [0.653 feet] of length in total. I didn't need 10 feet.

### ⭐⭐⭐⭐⭐ Used to help seal lint drawer on my GE all in one washer and dryer
*by R***. on 3 September 2025*

I use this rubber foam strip to seal the edges on the lint trap for my GE all in one washer and dryer as recommended by another user and I’m very happy with how it works for this unconventional use. Definitely meets my needs and expectations.

### ⭐⭐⭐⭐⭐ Es muy bueno
*by A***. on 28 August 2023*

este productos es muy buena calidad, es lo que me gusto

## Frequently Bought Together

- Frost King R338H Self-Stick Rubber Foam Weatherseal, 3/8"W, 3/16"T, Black|Blacks
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-29*