Worked like a charm, you can actually use a bread knife to install this if you do not have a tool to do so. Worked great! The old one that was in the faucet was broken in half where the plastic is in the middle. If you have problems with your faucet sprayer leaking and not working right, and little or no water coming out of the sprayer, replace the diverter. In my Delta faucet I did not have to turn off the water to fix this, just make sure you have the faucet handles turned to off. Also make sure to clear out any fine particles in the water and I used Jacks lube for the o rings . On my particular Delta faucet the model no. is on the back side in the middle of the base of the faucet. Quite hard to see as it is small and hardly noticeable. In the picture I pointed where the diverter goes, this cover is only hand tightened simply unscrew it counter clockwise and pull the fixture straight up and out, use a butter knife to unscrew the old diverter. In my case mine was broken in two so I had to use a pair of needle nose plyers. Hope this helps someone. Worked Great!