KuriKrimp™ Plated Steel Crimp Ferrules come in sizes to fit hoses ranging from ¾" to 6" ID, Kuri-Krimp™ Plated Steel Heavy Duty Crimp Ferrules are designed to be used with 4" ID hoses, Kuri-Krimp™ Plated Steel Crimp Ferrules (For Ground Joints with Interlocking Collars) come in sizes ½" through 4" ID and Kuri-Krimp™ 304 Stainless Steel Crimp Ferrules are used with hoses ranging from 1" to 4" ID.