Jesus, Dorman makes them . NAPA, Oreilly and Pep Boys are all Dorman dealers and most of them stock them and Oreilly is all over AZ . If you know of an auto parts store that has a lot of the orange Dorman boxes, they should have them in stock but sometimes they have them behind the counter . If they don't have them they can order them.
http://www.dormanproducts.com/c-15-brass-fittings.aspx
1/4", 5/16", or 3/8"
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