You are shopping Northern Brewer US shopping site, to view our Canadian shopping site - Click Here

Blowoff Assembly for PET Fermentors


SKU# 40289

Flat Rate Shipping only $7.99 only from Northern Brewer

#10 Stopper and hose to contain blowoff during primary fermentation of beer in a narrow-neck plastic carboy such as our standard Bubbler® or Better Bottles. Will not fit standard glass carboys or Big Mouth Bubbler fermentors.


Availability: In stock

Pic of 40289

More Views

  • Pic of 40289


Product Details

#10 Stopper and hose to help contain blowoff during primary fermentation of beer in a plastic carboy such as our standard Bubbler® or Better Bottles.. To use, put sanitized assembly in mouth of carboy and place end of hose in a bucket of water or sanitizer. Will not fit standard glass carboys or Big Mouth Bubbler fermentors.

Additional Information
Support Documents:No
3.2 / 5.0
31 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
The hole is too big for the supplied hose, so no seal is possible. So now I have a length of hose that is too short to be of any real use, and a stopper with a hole that won't even hold an airlock. Ridiculous.
June 4, 2017
12 months ago
Home brew
I use to brew a lot of beer years ago and still had most of my equipment stored in the basement.Just decided to start doing again forgot how good it was. Had to get a few parts I was missing and really glad I found this sight. Great prices and fast service. I would reccomend this company to anyone that brews beer!
October 9, 2015
Works great and IS a great fit
This product works great and really is a great fit, regardless of what you read in the 1-Star reviews. When you insert the bung into a Better Bottle or Bubbler with the "loose" tubing already in the bung, an amazing thing happens...the bung compresses a bit, as rubber does, and tightens the tubing inside the bung hole. So 1-Star reviewers, you can essentially "blow it out your bung hole."
May 29, 2014
Works perfectly
At first I was a little worried as the tube was slightly loose in the stopper, but operationally it seemed to work perfect. I would prefer a lip at the top of the stopper though, as it would be easy to push it too far in to get out easily.
October 30, 2013
Works amazingly well
I jumped on the 2 for 1 deal with the Bubbler carboys & picked up one of these so I could use for primary.I have to admit I was quite worried about the blowoff tube getting plugged (since I'm used to working with the 1" tube on glass carboys).I just put a batch of Winter Warmer into primary on Saturday & it is working like a charm. I did see problems with the bung slipping at first, but I also just set it on top of the carboy for a few minutes & inserted it once it was dry. No problems.
October 29, 2013
hole is too big
This is basically useless since the hole in the plug is drilled out too much so the hose just falls through it.Usually when something is overpriced it's because it saves you having to do it yourself. This is not the case here.
October 10, 2013
Too loose
I had same issue as others where the stopper would not stay in the bottle. Just moving the tube slightly would pull the stopper out. My last batch I really pushed it down and nearly was unable to get it out again. Why can't anyone get the Better Bottle Big Blow Off Closure? I can't find it online anywhere.
May 6, 2013
doesn't fit tight at all. It just slips out. No seal at all.
May 4, 2013
plugs more easily
This set up does seem to plug more easily with the smaller diameter tubing than with a 1" hose set up usually used on a glass carboy. Ideally a 1" hose could be adapted to the Better Bottle.
December 9, 2012
Not worth the price
Very disappointed with this purchase. The hole was oversized and the tube just barely would stay in. A regular drilled No. 10 stopper and a three piece airlock with tubing attached to it makes for a much better set-up. I will say though, the Better Bottle deal I got from NB was well worth the price.
November 12, 2012
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 2 answers
What is the ID / OD size of the tubing?
A shopper on Apr 22, 2017
BEST ANSWER: The tubing is 1/2" ID siphon hosing which is technically 7/16 ID and 9/16 OD
It says this blow off assembly is for PET fermentors. Why can it not be used with glass carboys? What should be used with glass instead?
S T on Sep 14, 2015
BEST ANSWER: The PET blow off will only work for PET carboy because the opening is larger than a glass carboy

so it will not fit in the opening. For glass carboys

we sell a large hose that fits right in the neck as a blow off: http://www.northernbrewer.com/shop/1-id-blow-off-hose

You may also be interested in:

Please wait...

Your selected product has been added to your Cart.
Continue shopping
View cart & checkout