Superior ElectricSuperior Electric YGA017-KIT 30 Amp 250 Volt Male Female Twist Lock 3 Wire Plug Nema L6-30P/30R (YGA017 + YGA017F)

Installed easily and worked fine.

Good quality

great part great transaction

Fine and basic...no problems.

They twist and they lock. Enough said.

Good thing. By design I'm sure. But I didn't realize there were different 125V and 250V versions and bought this by mistake for my 125V generator. Quality product though, easy to install....to bad I have to take it off again and send it back. My bad.

I think these connectors will be serviceable for my purposes. But they are definitely light duty. The prongs on the male connector are not perfectly secured to their base. They are "good enough" but do wiggle back and forth a little. It can make plugging it in more fiddley than it should be.Using them with care should yield a long life. I'm using them for a welder extension cable. But if you are looking for a heavy duty connector for rugged use in the shop or field, look elsewhere. There's a reason these cost half of what others do. But if you're on a tight budget and willing to go easy on the parts, these can certainly work!

Fits with my existing 30 amp plugs with no problem