Bought the wrong size, so selling this one brand new. This key will fit all Rainbird #44 as well as Lawnlife, Champion, Buckner, Weathermatic, Hunter and more 1" valves. Here is some important dimensions that will help you determine if this key will work for you.
Key length 9"
1" male threads at the top of key as well as 3/4" female threads.
Outside diameter of key where it enters the valve approx 15/16"
Inside diameter of key where it enters the valve approx 3/4"
These will not fit the #5 or #55 quick coupler valves