I see a fair number of posts asking how best to mount regulators within a traditional kegerator. Typical responses usually consist of cautionary tales of being sure of drilling locations and finding out where the coolant lines run, etc etc. Well, I'm happy to share that you don't need to drill. Most regulators have metal tabs or flanges for screwing the regulators to a flat surface. These tabs/flanges are also large enough to mount the velcro adhesive tabs (e.g. Command large picture framing strips). Cut the strips slightly oversized to fit on the back of the tabs/flanges. Be sure to make sure the tabs/flanges are clean and dry. Likewise for where you want to mount in your kegerator. Since the door is open while you're doing this and it's likely cold in there, be sure to have a dry towel on hand to frequently keep the wall surface dry prior to placing your regulators. Regulators are heavy so i went with the largest strips that i could fit on the tabs/flanges and the poundage seemed appropriate for my TWO secondary regulators (in series). 4 months into pretty standard to heavy usage (turning dials, pulling on hoses, etc) and they're still incredibly well secured. Put down the drill!