I recently ordered a swag of ACR copper tube in various sizes as part of another shipment I was getting from China. Price was too good to be true. As it turns out you get what you pay for. Thin wall, won't flare, bend or swage without splitting or crimping and easy as pie to burn holes in with oxy or mapp.

I'm tempted to send some off to a lab to see precisely how much copper is actually in it. It sure as hell can't be 100%.

I would not dare put it anywhere near 410A.

Back to Crane copper for me. Aussie made, Aussie supported. 5x the price and worth every cent.

I guess it'll do as water pipe, or low pressure compressed air.

Lesson learned.