Originally Posted by
lnanek
I sure hope they aren't charging much. I've made
exactly the same thing for a couple dollars previously just by using a regular presta to schrader adapter:
https://a.co/d/1e2VWPy
Then sticking a sealed schrader valve cap on:
https://a.co/d/gchxmpL
Hey, I've never seen flow-through valve caps before! I may get some of those for my wife's truck!