Copper on the inside, high temp black hose on the outside. Comes with the ball valve and bucket in the pictures. I've used this for probably 50 different batches and it works great. Mostly used for 10 gallon batch size. Connections are 1/2" female NPT on the wort input and output, and female garden hose on the water input and output.
Let me know if you have any questions.
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