Firepower 0656-0000 Kwik Connect Pair Pack of Torch Flashback Arrestors

BEWARE: THESE ARE NOT FLASHBACK ARRESTORS!They are simply torch-mount quick connect fittings with check flow valves. That is NOT the same thing as a flashback arrestor, and nowhere on the packaging are the words "flashback arrestor" to be found.That's pretty hugely (and potentially dangerously) misleading.For what it's worth, the ones I received are branded as Victor, which is also an ESAB brand, so that does not bother me.I can't review these for their functionality, but the misleading product title is worth the immediate 1-star review.Update: These are meant to be mounted to the torch end of the hose, not the regulator end. These things are too big for me to attach to my Harris torch. (Or, the torch's inlets are too close together, but it's a little late to return that!)The diameter of these is just under 22 mm, or 27/32", close to 7/8". This is at the knurled part, so if the torch's inlets are too close together like mine, it came become very difficult to attach the second connector, even if it is physically possible.