Review on Delta Faucet RP25513 Stem Assembly by Shima Hennigan

Easy to do yourself and save some money. The handle was leaking on the left (hot) side. I've found it's always better to replace both, so order two. In the meantime you can replace the seats and springs (Part #RP4993) and apply some silicone grease to the rubber o-ring and seats. Or photograph how the originals sit before removing the retaining rings. This makes it easier to swap them out. I always use OEM parts and not the cheaper aftermarket ones. Over the years I have found myself replacing faucet parts with genuine parts. They cost a little more, but you won't be changing them that often. These are Delta parts.