This key is for Larson Doors only that have a key that is coded 30 as pictured. Your key will not look the same and this is shown for comparison purposes only. Your key must look exactly like the picture included in order to work in the lock. Your lock may not have a code on it and if the key is lost, we would suggest using a core/key replacement that we offer. This is used on many of the common lever handle door handles. Please see 2029780003 LARSON KEYLOCK ASSEMBLY