And of course it is soft copper tubing, sold in rolls. Not copper water pipe, generally sold in 10-foot lengths. Be careful bending it, or it will kink. The pros can bend it by hand, but I would consider getting one of the inexpensive spring-type benders such as the Cobra kit 1/4-in to 5/8-in Tube Bender (Item # 636779 Model # PST073) from Lowes.
And once each joint is made, be sure to leak-test it with soapy water.
Bill
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