---
product_id: 137746953
title: "#6.5 Stopper Thermowell 15\" Long"
brand: "hbyob"
price: "€ 1.91"
currency: EUR
in_stock: false
reviews_count: 7
url: https://www.desertcart.ie/products/137746953-6-5-stopper-thermowell-15-long
store_origin: IE
region: Ireland
---

# 15-inch precision length Dual-hole stopper design Fits multiple carboy sizes #6.5 Stopper Thermowell 15" Long

**Brand:** hbyob
**Price:** € 1.91
**Availability:** ❌ Out of Stock

## Summary

> 🍺 Brew Like a Pro with Precision and Control!

## Quick Answers

- **What is this?** #6.5 Stopper Thermowell 15" Long by hbyob
- **How much does it cost?** € 1.91 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/137746953-6-5-stopper-thermowell-15-long)

## Best For

- hbyob enthusiasts

## Why This Product

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

## Key Features

- • **Exclusive Compatibility:** Perfect for standard glass carboys—note, not compatible with Better Bottles, so choose wisely.
- • **Durable 15-Inch Thermowell:** Extended length ensures precise temperature readings deep within your brew.
- • **Dual-Hole Stopper Innovation:** Two-hole design enables efficient temperature probe insertion and airlock use simultaneously.
- • **Optimized for Digital Control:** Designed to work flawlessly with Temperature Digital Controller #6.5 for accurate monitoring.
- • **Precision Fit for Versatility:** Seamlessly fits 3 to 6.5 gallon glass carboys for ultimate brewing flexibility.

## Overview

The #6.5 Stopper Thermowell is a 15-inch long, dual-hole stopper designed to fit 3, 5, 6, or 6.5 gallon glass carboys. It pairs perfectly with the Temperature Digital Controller #6.5, enabling precise temperature monitoring during fermentation. Note: incompatible with Better Bottles.

## Description

Fits 3, 5, 6, or 6.5 gallon glass carboys. Not compatible with Better Bottles.

## Features

- Used with Temperature Digital Controller
- #6.5 two hole stopper
- Fits 3, 5, 6, or 6.5 gallon glass carboys

## Images

![#6.5 Stopper Thermowell 15" Long - Image 1](https://m.media-amazon.com/images/I/215qnkWsazL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Took my fermentation temperature control to a while 'nother level.
*by W***E on March 23, 2021*

Not much to say other than it works great. The bung was a little too small for my widemouth carboy so I had to improvise but other than that I am pleased. Took my fermentation temperature control to a while 'nother level.

### ⭐⭐⭐⭐⭐ Worked great
*by D***J on May 20, 2024*

Worked great for my temperature probe when making wine

### ⭐⭐⭐⭐ works well
*by B***S on July 22, 2024*

EDIT: I stand corrected, it seals better than the larger plugs I got-------------------------------------------------------------------Definitely not a #6.5, barely a #6 when measured, not I need to spend twice the money to get the other half of this product in the form of a properly sized cork.Get another one, unless a #5.5 will plug your vessel.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/137746953-6-5-stopper-thermowell-15-long](https://www.desertcart.ie/products/137746953-6-5-stopper-thermowell-15-long)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-20*