I didn't notice (or even think about it) - the WK has a threaded - teflon tape valve over a newer 3/4"-
14 NPT O-ring valve! My WK has a 1/2 STRAIGHT thread w/ o-ring. From the looks, I'm assuming it has the tapered 1/2 threaded valve. A real pain if you do need to clean the inside. The Norris is pretty standard if it has the oring valve (i.e. new valves work fine).
If you decide not to keep either - feel free to drop them off where I can pick them up.
I'd really like to find a match to my other bottle bottom WK as they would make good doubles (my opinion only).