Other Fill nipple protector cap?

I keep thinking wolf nipple chips (get em while they're hot) ever time I see the subject heading to this discussion

*it's from Monty Python's Life of Brian for those of you wondering WTF I'm talking about.
No, actually I'll be 57yrs young in September, so I'm very familiar with Monte Python! And I'm also a big fan of old Benny Hill slapstick, with the occasional brief nudity that he would slip into his skits! I grew up on that stuff, my friend!!
 
Came on my HM1000x
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That looks the same as the one that came on my RAW. I'm not sure if it fell off, or if I left it on the truck bed when I was refilling the tank a few weeks ago. But it's not on the nipple anymore. And, honestly mine was never really a snug fit to begin with.
But, so far that's the only negative thing I have to say about my RAW. This may sound like RAW fan-boy comment, but if something happened to my HM1000X, I'd buy another one just like it today.