See I ended up with (2) full old-style propane tanks... meanwhile everything we use has been replaced with more recent style connectors. In the past I did not worry as I recycled an old style regulator & fitting onto the newer appliance. I figured I'd use them up on the gas grill. Well, the folks that make them changed that fitting to a crimp on... Sooo, long story short, I have (2) full 30's off my old camper which I could not use the propane.I finally located the correct adaptor fitting & ordered one. So when it came it had RED LOCKTITE on the threads and the spanner wrench to install it... the notches in the adaptor body were install only. I am sick of being forced to do things their way! I don't want to permanently convert these tanks (buy 2 adaptors). I want to use the propane I paid for & retire the tanks (since I am out of the horse business, I no longer use the skeeter vacs, use much less propane). I just used a tooth brush & laquor thinner to remove the locktite. I put the adaptor in a vise & used a little dremel cutter to make the spanner notches work in both directions. Yes, I'll have to check both sides of the connection when I change tanks... I think I can handle that!

That's a bummer. 2 days ago i needed a 5 gal diesel can. You should see what i have to do to use this crazy thing. Why cant they just leave stuff alone ?

Sorry about the focus.

The adaptor only had a shoulder on the side to tighten it... to the right in the photo... so I cut a shoulder on the opposite side of the notch (brass color to the left) for the spanner so the fitting could be removed... repeated in all the notches. It's a brass part, cut easily with the cutter shown in the dremel. You can see just a hint of the red lock-tight on the threads.