3 Gal Fermonster Wide Mouth Carboy #10 Drilled Stopper Twin Bubble Airlock
- 3 gallon wide mouth PET carboy
- 4 inch mouth for easier cleaning
- 4.3 cm lid hole, takes a #10 stopper
- 9.5 x 9.5 x 17 inches, 6 pounds
- Stopper, twin bubble airlock, extra lid and gasket included
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A wide mouth plastic fermenter for small batches, sold with a drilled stopper, twin bubble airlock, extra lid and gasket. It is plastic, not a glass carboy.
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ASIN: B07G4F9VXBCategory: Carboys
Overview
A home fermenting shelf is where this wide mouth carboy lives. The sides are smooth with no ribs, the body is heavy PET plastic, and an air-tight one piece lid seals it with an O-ring.
The reason to buy is the complete kit: lid, drilled stopper, airlock and spare gasket come with the vessel. The limitation is a short spec list with no temperature or pressure rating given.
Who it's for
A small-batch brewer who values smooth walls and hand access for cleaning is the match. Those who prefer glass, or who need a larger vessel, should skip it.
Pros and cons
- Wide opening eases cleaning
- Smooth sides, no ribs
- Oxygen impermeable PET
- Stopper and airlock included
- Plastic, not glass
- Temperature rating not listed
- Lid hole limited to one stopper size
Performance notes
Oxygen cannot pass through the PET walls, and the one piece lid with its gasket seals the vessel while the twin bubble airlock lets fermentation gas out. Smooth sides without ribs mean yeast and sediment find nothing to stick to, so rinsing is easier. The wide mouth gives a hand room to scrub.
Specifications
| Dimensions & fit | |
|---|---|
| Mouth diameter | 4 inches |
| Lid hole diameter | 4.3 cm (1.7 inches) |
| Dimensions | 9.5 x 9.5 x 17 inches |
| Weight | 6 pounds |
| Capacity & performance | |
| Capacity | 3 gallons |
| Construction & materials | |
| Material | Heavy PET plastic |
| Included components | |
| Included | Drilled #10 stopper, twin bubble airlock, replacement lid and gasket |
| Other details | |
| Made in | Canada |
Frequently asked questions
Is the Fermonster 3 gallon carboy made of glass?
No. The listing says heavy PET plastic, made with food grade, BPA free materials and no plasticizer.
Does the lid hole fit any bung?
The lid hole takes a #10 stopper and measures 4.3 cm (1.7 inches) across. A drilled #10 stopper is included.
Can I drill my own lid for the Fermonster carboy?
The listing mentions a separate undrilled lid sold as an option for custom drilling. It is not part of this item.