Pulley
.Model Number GL 10 CWB, GL 10 STR, GL 12 STR, GL 4 CWB, GL 4 STD, GL 4 STR, GL 8 CWB, GL 8 STD, GL 8 STR, Fits Brand Genie Pulley, For Use With Grainger Item Number 18F632, 18F633, 18F634, 4YZ81, 4YZ82, 4YZ83, 4YZ84, 4YZ85, 4YZ86, For Use With Mfr.