Kind of an FYI. I'm building a cooler, read a lot of forum entries, checked out some other builds, went with a re-purposed carbonator. However, the carbonator pumps are way too high pressure for this application, mine was 250 psi. Fortunately, due to some incorrect plumbing I didn't wreck anything. I found a posting somewhere that mentioned a JC Beverage company as being super helpful. Googled them, turns out they're 30 minutes away in Hitterdal, MN. Nice little mom & pop place, rebuilt 50 psi procon for 43.50 plus a core. Works perfectly.