Here's a 2nd recommendation to call
Borg and ask to speak to Bill.
After speaking with Bill, I ordered a set of valves for my 07 Workhorse W-24 chassis this past winter. He asked me a few questions, mainly to determine the correct size rubber grommet to secure the inner valve as it protrudes through the outer wheel. My plan was to have them installed while at
Redlands Truck & RV when I would be in that area on a trip in the near future.
Installation was going well until the tech determined the rubber grommets included in my kit just were not going to fit; they were just too big for the wheel opening. This was about 3:30PM in the afternoon.
I got on the phone with Bill and explained the issue. He committed to personally make a 2nd set of grommets to fit the wheel opening.
Borg is located in Tujunga, CA, which is about about 70 miles from Redlands. I offered to drive to Tujunga and pick up the new grommets as I planned to leave early the next morning.
Bill said it didn't make sense for me to drive 140 miles and instead had them delivered to
Redlands via UPS by 8AM the next morning!
Now that is customer service ...

And checking air pressure and adding air is now just a breeze!!!