The Colby Valve XL Emergency Valve was designed to replace broken valves stems on 5/8" (.625) wheel openings. These are the larger wheel openings found on farm equipment, construction equipment, commercial trucks, etc. These valves can be installed with a 9/16" socket or wrench, from the outside of the wheel, in 5 minutes or less.
While all of our valves will save you time, the XL can save you a lot of downtime and money on the job.