This is a butterfly valve for a 40mm Weber IDF carburetor.
If you are replacing butterfly valves, please ALWAYS use new screws!
The Weber IDF uses screws S57392022
For your convenience, you can order new screws along with your butterfly valve by simply selecting them through the drop-down menu marked Screws Y/N* which you will find above the Add to Cart button.
This product is priced, and sold, as a single unit.
Required quantity per carburettor: 2
This is item number 39 in the drawing of the Weber IDF carburetor.
This is Weber Part Number: 64005.126