The valve on my agricultural tractor tire was leaking and when I tried to pump more air I found the small inner valve stem was broken and not holding air and fluid to fill. Since I live far from the city, I borrowed it from a neighbor. When I finally got into town I thought I'd be easy to find but found that my local farm shop was out of stock and none of the nearby auto shops had them, but I had to order them for myself. I decided to look on Revain, found these and ordered a pair. Arrivedβ¦