I saved 4 of the old style groco rubber inserts for groco valves. These are no longer made or available.
2 are for 1.5" valves and 2 are for 1.25" valves.
The handles are still solidly fixed to the rubber. This is what often fails, the handle just spins and will not turn the plug
$15 each plus shipping
. I'm currently in Oriental NC and will be headed north later in June.