I will have to check mine at some point. Too tired now. Just hiked out to the shed to check on the spare Genny 1000 valves. The bad news is that after trecking out there through the snow, I realize I forgot the combo on the lock. The good news, I have a couple HF angle griders with cutting wheels already on them. The bad news is that I have to run 150 feet of extension cord out to the shed through the snow again. The good news, the HF angle grinder cut it off in about 15 seconds of cutting. The bad news, it took me 15 minutes to clean the snow and ice from in front of the doors to get into the shed. THe good news, I found the stash of spare valves. The bad news, I only had Silver B/C valves. The good news, I probably have a spare 1000 manifold somewhere in the parts pile. The bad news, it isn't on the top of the pile.
So SteveR, unless you can find a valve from another member, you will have to wait a month or so until I can pull my parts out for the upcoming season.
I tried.