No need to change the copper tubing.Unthread the female P.L.O. from the
new block. Use a sturdy vise and a substanial wrench. The block has red
thread seal on it and it's very hard to break the threads loose but it
will break loose. Then use a close nipple from there into the regulator.
I also took off the P.L.O. side on mine and used the P.L.O. off my
original tank. It was a tiny bit shorter than the new one. Everything
goes together nicely. I also adapted mine to work with the small 1 lb.
bottles. Nice for wen your in the middle of the steak cook-off and you
run out of gas. Spin the bottle on and go back to cooking. The stove
doesn't have time to evan cool off. If your interested n that mod. let
me know it's simple.