1 2 od copper pipe July 8, 2019 16 32 64 128 1 2 copper pipe od in mm 1 2 inch od copper pipe 2 1 8 od copper pipe 2 1 4 od copper pipe 1 2 copper pipe id od Actual od of 1 2 copper pipe Is 1 2 copper pipe 5 8 od 2 inch copper pipe