I am finishing my basement and the home owners had a wood stove and there was a pipe sticking out of the cement wall. I want to put a cap or cover on it both inside and out. I am just not sure what to get. From the inside the outer shell is a little over 8" but the inner is 6" see the attached pic. Also need to get a new cap for outside since they drilled through it to run wire. See attached pic. If you guys can point me to a link on what to get that would be great.