The MK4 Regulator by KegLand provides a reading of keg dispensing pressure, as well as an accurate indication of cylinder gas level. By turning the chrome center knob, you can adjust the dispensing pressure from 0 – 100 PSI. The MK4 features gauges housed in rubber to protect them from dings, as well as a large 2½" diameter diaphragm so it can both handle several kegs at once if needed, and the large diaphragm also lets you have precise control over the dispensing pressure (which you adjust with the center knob).
¼” flare outlet fits ¼" threaded flare beer lines or use the included Z93 Duotight tubing adapter to fit 8mm outer diameter EvaBarrier tubing. Includes a 65 PSI replaceable safety relief valve. This regulator includes two nylon tank sealing washer, and will accept nylon or fiber tank sealing washers.
This is a multi gas regulator, and can be used with nitrogen tanks if you purchase optional adapter D15.
Dec 12, 2021 by Steve
Q: Are the threads CGA-320?
A: Yes
Mar 25, 2021 by Martin
Q: If you want to put a shut off on the regulator what do you suggest would work as it is metric? And does williams sell this item?
A: This would be easy if you went Duotight with this and used ball valve X27. You can also unscrew the bottom outlet and install something like our item Q87, although they are very difficult to unscrew, as they are put in with thread locker.
Sep 28, 2020 by Chris Brown
Q: What is the input pressure of these regulators i.e. the C02 Cylinder Pressure. The Cylinder I'm looking at is 200psi and I just wanted to check that this regulator would be sufficient for that?
A: 200 PSI seems pretty low for a Co2 tank as most 5lb Co2 tanks will be closer to 800 psi when full at room temperature and 600 psi when stored cold. This regulator will have no problem dealing with 200 psi safely.
Aug 20, 2020 by Chris
Q: Since this is a "multi-gas regulator" can it be used for 75% Nitrogen/25% Co2 mix, 100% Nitrogen, or 100% Argon if the correct conversion piece is applied?
A: Yes, although we do not have the correct conversion pieces for USA spec tanks.
Jun 21, 2019 by Chris
Q: These are supposedly multi-gas regulators. Can we order the type 50 converter for nitrogen from Williams?
A: No, because the converters are currently made for Australian standards, and will not fit American Nitrogen bottles.
Limited use
I use this regulator for carbonating only 30 lbs because the gauge only reads from 0-20-40-60-80-100. Trying to set this at 12 lbs isn't as easy as you might think. To bad it's not offered with a finer gauge maybe one with 0-10-20-30-40.
NO Shut off - no big deal!
It is a good regulator but there is not shut off valve. For some this could be a deal breaker however, it is just as easy to modify and adjust the pressure using the big handle pressure knob and you can just shut off the tank. I wrote a very scathing review earlier but I like the regulator and I am glad I purchased this compared to others.
MK4 regulator
Excellent regulator to replace my 20 year old regulator. This thing will adjust down to 1or 2 psi for my closed transfers! Low profile, well built. It's a winner.
For the price great item
I really like the fit and finish of this product. It feels very solid and works great. I too wish it had a valve on it, but that is easily fixed if you need it. If you plan to use a manifold, you don't really need a shutoff. But even then it'd be nice to have. You can't beat the price on this unit. This would be my next purchase if I need a regulator for a project. Will recommend to friends.
It leaked
I went through several cylinders before I discovered it leaked internally. Next time I'll step up to a better product.