I've bought stuff off of E bay, from Energy something, don't remember. Anodizing looked super great, but for some reason, all the surfaces were different sizes from what you would normally use. All metric. I found some purple fittings on AliExpress out of China, took 2 months to get my 90's, never got my straight fittings. Can't find anyone that made purple fittings. Will be going back to red/blue or black USA made stuff.