Product Info: Part: Drain Hose Material: Rubber End 1 Outside Diameter: 0.939 inches / 23.86 millimeters Hose Shape: Molded End 2 Inside Diameter: 0.472 inches / 12 millimeters End 2 Outside Diameter: 0.669 inches / 17 millimeters End 1 Inside Diameter: 0.743 inches / 18.