---
product_id: 6436608
title: "Rubber Stopper - Size 10 - Drilled"
brand: "ritebrew"
price: "¥2053"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/6436608-rubber-stopper-size-10-drilled
store_origin: JP
region: Japan
---

# Top diameter: 50mm Bottom diameter: 42mm Drilled for versatility Rubber Stopper - Size 10 - Drilled

**Brand:** ritebrew
**Price:** ¥2053
**Availability:** ✅ In Stock

## Summary

> 🔧 Stopper Up! Your brewing game just leveled up!

## Quick Answers

- **What is this?** Rubber Stopper - Size 10 - Drilled by ritebrew
- **How much does it cost?** ¥2053 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/6436608-rubber-stopper-size-10-drilled)

## Best For

- ritebrew enthusiasts

## Why This Product

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

## Key Features

- • **Easy to Use:** Effortlessly integrates into your brewing setup, making it a must-have for enthusiasts.
- • **Durable Material:** Crafted from high-quality rubber for long-lasting performance.
- • **Precision Sizing:** Top diameter of 50mm and bottom diameter of 42mm for a snug fit.
- • **Versatile Design:** Perfectly drilled to accommodate airlocks or tubing, ensuring seamless fermentation.
- • **Community Favorite:** Join countless brewers who trust this essential tool for their fermentation needs.

## Overview

This Size 10 Rubber Stopper is expertly drilled to accept airlocks or tubing, featuring a top diameter of 50mm and a bottom diameter of 42mm, making it an essential tool for any brewing enthusiast.

## Description

Rubber Stopper - Size 10 - Drilled

## Features

- Drilled to accept airlock or tubing.
- Top diameter: 50mm, 1.97 inches. Bottom diameter: 42mm, 1.65 inches

## Images

![Rubber Stopper - Size 10 - Drilled - Image 1](https://m.media-amazon.com/images/I/51lJiFNqQ6L.jpg)

## Questions & Answers

**Q: What is the physical size???**
A: These are not "ideal" for all 5gallon water jugs! Does not fit Primo 5 gallon walmart jugs!  Get a smaller size for them!

**Q: What OD tubing will work best to fit snug on the center hole? 3/8 or 5/16?**
A: Thanks for asking. 3/8in OD tubing fits in the hole but may be a bit loose. Therefore, 7/16in OD tubing will provide a tight seal despite taking some effort to squeeze in.

**Q: does this fit a gallon carboy?**
A: No. You will want a universal or 6.5 stopper for a one gallon jug.

**Q: What is the hole diameter in the stopper**
A: The stoppers I received had holes approximately 3/8 inch in diameter.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for running cables through a wall!
*by A***E on June 19, 2022*

I had run my security cam cables through the wall and needed a way to seal the hole.I searched and found the 'RiteBrew Rubber Stopper - Size 10' to be the correct size for the hole, allowing for the fact I was going to cut halfway through it to slide the cables in, which would reduce the outer diameter slightly.The rubber is pretty hard, but compliant enough. I used a drill bit to enlarge the central hole slightly and then used a saw to cut the slit. It worked just as I had intended.If I needed a Size 10 stopper for brewing, this would have worked perfectly also! $5.50 is a reasonable price for its size and quality.

### ⭐⭐⭐⭐⭐ They fit
*by S***. on April 2, 2024*

Workd really good

### ⭐⭐⭐⭐⭐ Perfect for the PET carboys I bought
*by T***. on May 25, 2024*

These are a perfect fit for the 5 and 6 gallon carboys that are made of PET plastic. Perfect fit, and they likely will not pop out during fermentation due to the surface that they have. Very pleased.Hoping they last as they seem to be made of good quality material.

## Frequently Bought Together

- RiteBrew Rubber Stopper - Size 10 - Drilled
- Twin Bubble Airlock and Carboy Bung (Pack of 2)
- FastRack 6 Gallon PET Carboy | Clear 6 Gallon Fermenter | Food Grade – BPA Free, Leak-Proof for Fermentation, Storage and Brewing | Large Plastic Carboy for Home Brewing, Wine and Beer - 1 Pack

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**Shop now:** [https://www.desertcart.jp/products/6436608-rubber-stopper-size-10-drilled](https://www.desertcart.jp/products/6436608-rubber-stopper-size-10-drilled)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-03*