The replacement pull-down sprayer has an easy-push side button. This allows you to toggle back-and-forth between spray and stream functions fast. Provides a strong stream for full sink access. Design This sprayer is designed to be a perfect replacement for your faucet's sprayer. With various finishes to choose from, you are sure to find the color that matches your model. For use with Dura Faucet product DF-NMK530. Quality Durable and lightweight. This sprayer head is the perfect choice to repair your Dura Faucet product. There is no need to buy a new unit when you can replace only what you need.