CKJ CKJ Model Numbers: CKJ18-1 CKJ24- (1, 1A) CKJ30- (1, 1A, 1D) CKJ36- (1, 1A, 1D) CKJ42- (1, 1A, 1D, 1T) CKJ48- (1, 1A, 1T) CKJ60-1
