Regulators

Good question and one I hadnt thought about. Ive just started kegging and put the whole lot in the fridge and never gave it a thought. Gash will know so Ill be interested to know, but ill make some inquiries . Cheers,

I found this cheers
And on a final note, putting the bottle of gas in the fridge will cause the reading on the gauge to drop to 500 psi. This is not a loss of gas, it is just a lowering of temperature - it will come back up when you warm up the bottle. Temperature and pressure are connected (as Boyles and/or Charles figured out in the 19th Century) so do not worry it does not affect your keg set-up to have your C02 bottle in the refrigerator.

Enjoy your keg setup! It is the most enjoyable thing you can add to your homebrew setup!

Yep in the fridge is fine, but as Finnroo said the pressure gauge will read lower on the gauge that shows you the actual pressure in the tank, the gauge that supplies pressure to your keg, or serving pressure will read normally. Cheers!