No it's the fitting only

That piece is designed to screw into the regulator. Just wrap it with plumbers tape two or three times and thread into the regulator. Be careful not to over tighten.

There is no "nut". It simply screws into a 1/4-in female NPT fitting like most CO2 distribution manifolds used inside keezers.

No. I thought the same. The Thermowell will not pass through this DuoTight fitting. Kegland makes replacements but more beer does not sell them... why??

I tried this and it didn't work. The thermowell is just slightly to big to go through that bulkhead. I git the 23.6 inch thermowell with bulkhead for fermzilla.

This is what I used to install the thermowell in my kegmenter. I did make a slight grove in the thermowell with tubing cutters to keep it from pushing out under pressurized fermentations. It worked fine for me.

Might work as but its not a true Bulkhead fitting which would have the backing plate and seal with nut.....Instead I'd Go here Canuck home brew supply as they have bulkheads and more... Hope this helps with your project. David

The duotight fitting is not a bulkhead. It’s intended to be used with EVA Barrier tuning for liquid or gas lines. You could look at MT385 “ Plastic Bulkhead for Temperature Probe”. That might meet your needs

That’s my same question.

That makes sense to me. But I gave up on Duotight. Tubing too stiff. Leaks at fittings if you put any side force since you're depending on o-rings for a seal. Barb fittings with clamps or flare fittings are more reliable in my experience. Dan

These probably will not work for what you're aiming to do. Sometimes you can use BSPP threads on NPT fittings but since these are plastic you run a big risk of breaking the plastic threads and not getting a tight connection.

The fitting won’t have any issue with it for degradation but there is a minor concern with it for design. First the threads are not directly compatible. You’ll need a reducer bushing threaded 1/2” male NPT on the outside and 1/4” female NPT on the inside. Plastic recommended get some good pipe tape like Blue Monster. Use three wraps and be careful not to cross-thread it. The Duotight fitting is BSP not NPT though they are theoretically compatible. As it is a straight thread instead of a taper the rubber sealing gasket at the base provides the seal instead of the interface of the tapered pipe threads. You may need a small amount of pipe tape but try it without first you may get a good seal on your first shot. Good luck I’m really happy with these Duotight fittings and am gradually getting rid of everything else.