US Warehouse - FREE FAST Shipping in USA Product Description: Repalcement manufacturer part no.494768 ,493960 ,698183,698181,697947,5019H,5019K Fits 1/4" ID Fuel Line Package include: 10pcs shut off valve, 20pcs clamp Fits 1/4" ID Fuel Line Repalcement manufacturer part no.494768 ,493960 ,698183,698181,697947,5019H,5019K Package include: 10pcs shut off valves, 20pcs clamps At the end of the lawn mower season if your lawmnower has a shut-off valve on the fuel line, turn off the valve and run the engine until it quits. This will assure all the fuel is used up in the carburetor before storing. If the lawnmower has no shut off valve on the fuel line, consider installing one, otherwise drain the tank and run the engine until it uses all the fuel before storing. Also use a shut off valve as a safety feature during the season when storing equipment in a garage or storage building between mowings. It helps with fuel leaks due to a bad needle valve or leaking carburetor. Thank You for Shopping!