Caster 4 In.,Swivel/Brake,375 lb, For Use With Grainger Item Number 19H365, 19H366, 19H367, 20UY83, 20UY84, 20UY86, For Use With Mfr. Model Number GR-1500PTR219-PU, GR-1500PCR219-PU, GR-1500DR219-PU, GR-1500DB219-PU, GR-1500PCB219-PU, GR-1500PTB219-PU,...