Bargain Cave: FLEX+

4 reviews
  • Bargain Cave: FLEX+


Sorry, the Bargain Cave: FLEX+ is not currently available.

**This is a 1 port lid, old logo model.**

Introducing the new Spike FLEX+! The FLEX+ was designed to be the most versatile, upgradable and longest lasting small batch fermenter on the market. With currently over 20 accessories (and counting) you'll never run out of run toys to bling your FLEX out with. The FLEX+ is the big brother to the standard FLEX. Out of the box it features an upgraded tri-clamp racking arm, tri-clamp butterfly valve and upgraded high pressure lid and clamp that can handle up to 15psi. The higher pressure rating allows for carbonating your beer in the same tank you fermenter in. Carbonate your beer in 24hrs opposed to 7 days!

You can view all the FLEX+ accessories HERE.

All hardware shown HERE is included!

Flex Features:
-304 stainless steel; 1.2mm (18ga)
-All sanitary welded ports (no-weldless fittings)
-Designed for 2.5 to 6gal batches
    -7gal total capacity
-15psi working pressure
    -Use for pressure transfers
    -Use as a brite tank
-Etched volume markings
-Fully polished finish

-15" wide by 21¨ tall (to top of 4" TC)
-See additional dimensions here

Lid Features:
-4" TC modular top port
    -Allows for hop additions, temp control coil, top sight glass, etc
-1.5" TC port
    -Use with blow off or air lock, blow off cane, pressure manifold, CIP ball, etc
-Stainless band clamp for attaching the lid
    -Completely removable lid for easy cleaning

Body Features:
-1.5" TC racking port with rotatable racking arm
-1.5" TC secondary port for thermometer, sample valve, etc

Racking Arm Included

  • Racking Arm
  • The Flex+ includes a tri-clamp rotatable racking arm as a standard item. This allows you to rotate the racking arm as you drain your Flex+. You’ll start draining in the upwards position and rotate until the beer stops running clear. The Flex+ comes with a racking arm that has an indicator so you can easily see what orientation the racking arm is at from the outside.


4" Lid Port

      • Lid port
      • The Flex+ features a 4” tri-clamp welded onto the lid. Why? Modularity. This allows you to attach our drop in temp control coil, clear cap and allows for easy hop additions. Our temp control coil extends deep into the Flex so both full batches (5-6gal) and half batches (2.5-3gal) can be efficiently cooled. The 4” port also allows for unmatched simplicity when adding hops during your fermentation. Gone are the days of removing the entire lid which allows oxygen in and also opens the door for an infection.


TC100 Full Temp Control Package

  • Temp control is arguably the most important aspect of brewing. Proper temperature control can eliminate off flavors and manipulate flavor profiles that different yeasts produce at different temps. Up until this point precise fermentation temp control was only available on larger more expensive fermenters – not anymore. Our full temp control package includes the temp coil, insulated tubing, quick connect tube fittings, cooling pump, insulated jacket and dual temp controller. We also have a heater available for us cold weather brewers. All that’s needed for cooling is a cold water source! Many people use a cooler with ice, fridge with a glycol reservoir or even a glycol chiller!


Primary, Secondary, Carbonate and Pressure Transfer

      • Pressure Transfers
      • We feel the Flex is the most versatile fermentation vessel on the market for the price point. The Flex+ can accomplish everything tanks 2-3 times its cost can do. You’ll easily be able to primary, secondary, carbonate (brite) and pressure transfer with one vessel!


Customer Reviews
4.8 Based on 4 Reviews
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Filter Reviews:
Mike G.
Huge step up from glass

Huge step up from glass carboy. Having ability for easy samples, closed pressure transfer and force carbonation are game changers.

  • Ease of use
  • Recommendation
  • Value
Chad M.
Formidable little fermenter at a bargain price!

I had been watching for a Flex+ to pop up in the Bargain Cave for several months. As soon as one did, I jumped on it. Spike's quality control must be exceptional, as I could not find what made this a less than perfect item. The fermenter has been bubbling away since I received it. Great product and quality packaging!

  • Ease of use
  • Recommendation
  • Value
Christian W.
The bargain cave flex plus

The bargain cave flex plus was a great deal. A small linear dent was the only noticeable defect. I upgraded from PET fermentors, so I am more than happy.

  • Ease of use
  • Recommendation
  • Value
Keith B.

Excellent product, the product exceeded all expectations. There will be more Spike brewing equipment in my future. The product is five starts. The packaging however.....well, it arrived with the side the the box torn open and the rim sticking thru the side of the box. The cardboard was crushed on the inside, and pushed out, so while there was obviously some rough handling, I would highly recommend the top foam extending further down the side so it can't pop off the top like mine did. Thankfully, it's built like a brick outhouse and there was not a mark to be found. Selling all my glass carboys. About to get started on my first pressurized Hard cider fermentation and I bought the transfer kit to transfer right to the key. No pumping, no siphoning no airlocks. Moved my hobby into the 21st century. Thank you Spike.

  • Ease of use
  • Recommendation
  • Value