Walk-in cooler Handles. O-Reps.com distributes walk-in cooler safety door handles by Kason® The 1229C, 1236C, 1238C and the 027C Safety locking Door handles. Safety handles have an inside release to keep from getting trapped inside a cooler box or room even when the handle is locked. Providing replacement and new latch and handle hardware for Walk in Coolers, Freezers and Warehouse storage boxes. Online ordering 7 days a week!