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4.75 Gallon Wide Mouth Glass Carboy

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The Kegco 4.755 Gallon Wide Mouth Glass Carboy is the ideal fermentation vessel for 3 gallon batches! These glass jars do not scratch easily, making them easy to sanitize and preventing them from holding odors after fermentation. They are airtight and do not break down over time so if you handle them with care, they can provide decades of great performance.

Unlike normal carboys, they have a 6" wide mouth which allows you to reach all the way inside, making adding or removing ingredients and cleaning much easier. Stick your whole arm inside the vessel to reach all of the surface area with a cleaning cloth, ensuring bacteria has no place to hide. The screw top lid ensures that it stays on throughout fermentation and won't slip out like a foamy bung! The lid features a removable cap in a recessed area that can double as an air lock or hold a #3 stopper for your own air lock. What's more, handy carrying straps make transporting the jar a breeze!

Available in 3 Sizes - 4.755, 5.5 and 7 Gallon

glass jar

Wide Mouth Makes Cleaning Easier Than Ever

The glass jar is less likely to get scratched up than a plastic carboy or bucket, so these jars are already easy to clean, but the wide mouth makes it even more convenient than a normal carboy. Stick your whole arm inside the vessel to reach all of the surface area with a cleaning cloth, ensuring bacteria has no place to hide.


Install Your Own Air Lock

When using this jar as a fermenter, gas will be released from your brew. If the vessel were sealed airtight, the added gas could cause the jar to explode if not vented properly, but if there is not a good seal, your brew could be come oxidized. The removable cap on the lid allows you to install a drilled #3 rubber stopper with your own air lock so the gas can vent without allowing in oxygen.


Built-in Air Lock

The lid has a recessed area with a removable cap that can be replaced with a breather cap to use as an air lock. The breather cap allows gas to escape from the container during fermentation and having it in a recessed area allows you to fill it with sanitizer so that the released gas can bubble out, but harmful oxygen and impurities cannot get in and contaminate your brew.


Adjustable Dial To Set Brew Date

The lid features an adjustable dial that allows you to set the date that you begin fermentation, so if you have multiple batches going at the same time in different jars, it's easy to keep track of when each one started! Simply turn the inner dial to the month and the outer dial to the day. No more sticking a piece of tape on the side with a date scribbled on it!


Durable Straps Make Carrying Easy

If you've ever tried picking up a slippery jar that's filled with a few gallons of liquid, you'll appreciate the convenience and safety of having a strong woven nylon strap to lift and carry the jar from place to place. The straps fit snugly around the jar and criss-cross the bottom to evenly support the weight, but can be quickly slid off the jar for cleaning.

  • Capacity: 4.755 US Gallon Max Capacity (4.25 Gallon to top line before bottle curves)
  • Material: Glass
  • Plastic screw on lid with recessed cap
  • Breather cap can be used as an airlock or replaced with a #3 drilled stopper and an airlock
  • Strong nylon woven strap for easy carrying
  • Dimensions: 15.25"H x 10.5"W
  • Weight: 11 lbs

Disclaimer - These carboys are made of glass and should be handled with extreme care. We have been able to use both hot and cold liquids in them, but they are not impervious to thermal shock and can shatter when exposed to large, sudden changes in temperature. Use caution.

Note - The breather cap is now clear plastic, not black plastic

UPC: 700697202229
PDFCarboy Safety

4.75 Gallon Wide Mouth Glass Carboy Reviews

Average Customer Rating:
(based on 23 reviews) 
Great fermenter, a few flaws
by:Wyrmwood (04-03-2021)
Comments:The wide mouth and wide design is perfect for my fermentation chamber. The screw on air lock is a neat idea, and works for some fermentations, but vigorous ones still require a blow off. Having a non-standard size hole (bung #4) is unfortunate, -0.5. The carrier is nice, and while the nylon is strong, when you have 50lbs of liquid in it, you need a towel or gloves or the straps will cut into your palms, -0.5. Overall, way better than the Big Mouth Bubbler and so comes recommended.
Bottom Line:I would recommend this product.
Used for unconventional purposes
by:Jimmy Bob (03-24-2021)
Columbus, OH
Comments:So I actually ended up purchasing this because I infuse oils to make skin creams. Herbs sit in a mixture of oils to create medicinal properties. I purchased the 5.5 gallon glass carboy and I will be purchasing the 7 gallon on my next order. I roll this giant glass container around, shake it around, its very sturdy. I would not place the carboy upside down, as the lid (although airtight) was not manufactured to withstand that amount of pressure. In short, I would definitely recommend this container for infusing oils if you're manufacturing infused oils in bulk.
Bottom Line:I would recommend this product.
Does the job
by:JW (06-08-2020)
Comments:Does a good job at fermenting. Wide mouth is a big benefit, Lightweight.
Bottom Line:I would recommend this product.
Just what I wanted
by:JUDI (05-27-2020)
Camden ME
Comments:This is exactly what I was looking for. I'm using it as a display jar for sea glass off Maine beaches my mom collected in some 40 years...and the jar is full. Attractive and high q6. It came packaged extremely well so I wasn't disappointed with a broken jar.
Bottom Line:I would recommend this product.
Perfect Size
by:PP (04-29-2020)
Comments:The glass jar was well packed and delivered without any damages. Perfect size for what I am doing. I would do business with this company again.
Bottom Line:I would recommend this product.

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Item Qty Discount Price
Model: KC SD-4755J
Availability: Only 505 left
Select Upgrade Options
Optional Accessories
#3 Rubber Stopper - Drilled +$2.50
#4 Silicone Stopper - Drilled +$7.00
Double Bubble Airlock +$2.99
Three Piece Airlock +$2.99
The Fermometer - Adhesive Fermenting Thermometer +$7.26