Hi Mike, Thank you for your question. To remove the spout on the model 24902 and access the RP20049 o-ring you will need to unscrew the spout bonnet at the base of the spout. The spout bonnet is the decorative trim piece at the base of the spout. This piece is a threaded connection that can be removed by unscrewing the piece in a counter-clockwise direction. Once unscrewed you will be able to lift the spout free of the valve body to replace the o-ring.
Date published: 2016-09-14