My refrigerated case has a built in bumper, Do I still need a protection device for my case? 

Most refrigerated cases today do incorporate an impact resistant bumper in there case design. While those types of bumpers are located to absorb the impact from retail shopping carts, the majority of damage occurs from motorized pallet jacks or forklifts and floor scrubbers. Therefore, it's a wise investment to have case protection around your cases in your retail store.