Hello dmichae,

If you click on the part number below. It will show you 150 different gas units that the 530035014 metering diaphragm is used on. There are no Ryobi tools listed. However that does not mean that this will not work on yours. Because many of the manufactures of outdoor products use the same carburetor manufacture. If you could post the model number of your Ryobi that may help in finding out if this part will work.