FLEX
The most “Flex-ible" fermenter on the market. A huge step up from a standard carboy, the Flex product line is made from 304 stainless steel, so scratches and shattered glass are a thing of the past.
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Overview
The Flex was designed to be the most versatile, upgradable, and longest lasting small batch fermenter on the market. With over 25 accessories (and counting!) available, you'll never run out of fun toys to "bling" out your Flex with. You can use the Flex as a simple bucket fermenter with an airlock or add some accessories.
Features:
- 304 stainless steel; 1.2mm (18ga)
- All sanitary welded ports (no-weldless fittings)
- Designed for 2.5 to 6 gallon batches -7 gallon total capacity
- 2psi working pressure -Strong seal to keep oxygen and bacteria out -Use for pressure transfers to your keg or bottling bucket
- Etched volume markings
- Fully polished finish
- 15” wide by 21” tall (to top of airlock)
Lid Features:
- 4" TC modular top port
- Allows for hop additions, temp control coil, top sight glass, etc
- Airlock port
Body Features:
- 1.5” TC racking port with rotating racking arm
- 1.5” TC secondary port for thermometer, sample valve, etc.
Reviews
- Reviews
- Questions


Outstanding fermenter.
I’ve owned my Flex for 3-4 years now. I cannot begin to recall all the batches of beer I’ve made with it. I’ve added the wort chiller that goes in the 4” port on top and I’ve added the new adjustable pressure relief valve. This is, without question, the best investment I’ve made in my home brewery. I encourage you to save your money and buy one. You will not be sorry.

Flex
I have not used it yet but it looks like it will work well for small batches. Waiting for the 3-port lid to become available.

Outstanding piece of equipment
I purchased the Spike Flex+ as an entry-level homebrewer and have performed two fermentations with it. The tank is solidly built with a great selection of add-ons for customization. Easy to setup, use, and clean.
Bestest Little Big
The Flex+ is literally the best little big fermenter on the market! I only brew 5 gallon batches. I really did not have an interest in larger conical fermenter. I just really thought they would be much more than I needed. The flex+ give you all of the functionality of the larger unitanks (aside from a dumping port) w/ a muncher smaller footprint and matching price tag. I have 2 and absolutely love them!! R2DDH and Bob Barley are the heart of my fermentation!!

where is it?
you keep sending me e-mails but I dont even know how to check on my order

Upgradable
With over 25 accessories available there’s no limit to what this fermenter can do! Want to add a thermometer or sight glass? It has ports for attaching those. Want to add wheels or leg extensions to transfer directly into a keg? It can do that, too!

Stainless Steel
We all start with glass carboys or plastic buckets, but the day you graduate to stainless is the day brewing gets extra fun. 304 stainless steel is professional grade, easy to clean, scratch resistant and will last a lifetime.
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Removable Lid
To remove the lid, simply pop off all five clips around the side. That way, you can get your entire arm in the fermenter to clean and sanitize it.