Has a heat and ozone resistant cover to increase the life of the hose Comes with a protective sleeve to help duplicate GM OE designs for proper fit and function Made of re-engineered materials to resist vacuum collapse and also reduce the need for internal springs in many applications Installs without buckling, bending out of shape, or straining at the connection for easy installation Inside diameters ranges from 1?4 in to 1 in to fit different types of vehicles Good Maintenance Practices: Examine hoses every 12 months. Look for leaks, cracks, or rot. Replace when showing signs of wear. Tighten any loose clamps. Replace clamps when replacing hoses. Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating. Periodically remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency. Though electrochemical degradation occurs from the inside out, you can feel for voids, cracks, or weak spots. Squeeze the hose with your thumb and two or three fingers. If you're not sure, remove the hose and check it visually. 1. Package Dimensions: 13.3 x 2.5 x 2.5 inches 2. Package Weight: 0.91 lb 3. Package Quantity: 1 4. National Popularity Code : C 5. Centerline Length: 16.6 IN 6. Centerline Length: 422 MM 7. Color: Black 8. Contains Spring: NO 9. End 1 Inside Diameter: 1.22 IN 10. End 1 Inside Diameter: 31.0 MM 11. End 2 Inside Diameter: 1.28 IN 12. End 2 Inside Diameter: 33.0 MM 13. Hose Shape: Molded Assembly 14. Hose Shape: MOLDED_ASSEMBLY 15. Material: Reinforced Rubber 16. Measurements: 1 7/32 in x 1 9/32 in x 16 19/32 in 17. Protective Sleeve Attached: Yes 18. Vintage Part Indicator: N Q: Can an automotive hose detach during use? A: Yes, make sure the hose clamps are screwed on tightly when installing. ***************************************** Q: Can an automotive hose freeze in the winter? A: Yes - when there's water in the hose. That's why it's important to follow the vehicle manufacturer's recommendation on the use of engine coolant. ***************************************** Q: Can I use the same automotive hose for multiple uses? A: No, use the hose in the way it's listed in the ACDelco belts and hoses catalog. ***************************************** Q: Will I know when it is time to replace an automotive hose? A: Yes, this requires inspection, though. When the engine is cool, squeeze the hoses with your thumb and forefinger near the clamps. Feel for soft or mushy spots. A good hose will have a firm yet pliant feel. Also, Inspect for cracks, nicks, bulges (usually while hot), or a collapsed section in the hose and oil contamination, or fraying near the connection points. ***************************************** Q: Are there steps I can take to ensure a longer automotive hose life? A: No ***************************************** Q: Will a worn automotive hose affect gas mileage? A: No