From the product description, check product page for current description, price and availability:
Use your keg for fermenting with this converted lid with a bung and airlock! Compatible with ball lock and pin lock kegs.
These have a hole that’s designed to accommodate the included stopper and airlock. That allows you use a Cornelius Keg as a fermenter. Use a 5 gallon keg as a secondary for a 5 gallon batch, use a 5 gallon keg as a primary fermenter for smaller batches or use a 10 gallon Cornelius Keg as a fermenter for 5 gallon+ batches.
In most cases, Pin lock and ball lock cornelius style keg lids are interchangeable from a size perspective. That means you can, generally speaking, put a pepsi/ball lock style (manual prv) lid on a coke/pin lock style (no manual prv) keg. In my book, that’s a solid upgrade. See: What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs?
18+ Liter Ball Lock Keg | Fully Remanufactured (AEB/SAFER/Cornelius) | SEE DESCRIPTION
From the product description, check product page for current description, price and availability:
18+ Liter Ball Lock Keg | Fully Remanufactured (AEB/SAFER/Cornelius)
These are top-tier, refurbished Corny kegs made of stainless steel. With stainless steel costs climbing and high-quality used kegs becoming increasingly scarce, this is an offer you won’t want to overlook.
Every keg in our collection undergoes a comprehensive refurbishment process. This includes deep cleaning, machine polishing, and the replacement of o-rings on the lid, PRV, as well as liquid and gas dip tubes, in addition to two o-rings on each post. These kegs are all sourced from elite brands, including AEB, SAFER, and CORNELIUS.
Additional Information on Our Refurbished Kegs:
Though these kegs are pre-owned, they may exhibit minor cosmetic imperfections such as small dings and scratches that couldn’t be completely polished away. None of these issues impact their functionality.
After the cleaning and polishing operations, some residue might be present on either the keg’s exterior or its rubber components. While it may transfer onto your hands, this is merely a reminder that all kegs—whether new or used—need to be meticulously cleaned before usage. Proper sanitization is also crucial before filling them with any beverage.
A subset of these kegs has experienced sun damage to the rubber areas, affecting the seal. This could lead to the formation of black marks, particularly when the rubber is wet, although this is less likely when it’s dry.
Lastly, you might find some kegs with double o-rings on their posts. While this may appear out of the ordinary, rest assured they function as effectively as those with single o-rings.
Diameter: 8-7/8″ (225mm)
Height: 22-1/4″ (565mm)
Weight: 9 lbs 9oz (4.34kg)
Volume: 4.75 gallons (18 liters) but some are also slightly more in full volume
Post Thread Size: 9/16-18 UNF Thread on both the IN and Out.
The fact is… the era of cheap and readily available used homebrew kegs is… done. I could give you a bunch of reasoning behind that opinion including one of the best sources for used kegs… de-listing used kegs, but I’ve got a regularly updated article on the topic you can check out.
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These 38mm threaded caps work with compatible growler size 64 oz and 1 gallon jugs to convert them to fermenters for small batches and yeast starters. They feature an airlock hole.
BowTie v1 Assembly
BlowTie v1 assembly that has been updated to digital, see below for walk through of that process.
The BlowTie is the heart of this build. It has DuoTight Push to Connect connections on both side as well as an adjustment knob to set pressure. Related: 
