4″ Rear Locking Lift Caster 4″ Rear Swivel Locking Caster, 12mm Fits Lumex and Medline and BestCare Patient Lifts and Sit to Stand Sold Each BestLift: PL350CT, PL400H, PL400HE, Pl400EF, PL400, PL500, DPL650HD, PL600 (Made after Feb 2017) PL400E/E-D/EL BestStand: SA400, SA400H, SA400HE, SA500, SA600 (Made after Feb 2017) SA400E/E-D/EL BestMove: STA400, STA450
