*PLUMBERSSTOCK EXPERT* responded:
Thank you for bringing up that interesting question. A diverter, such as this Moen 14960, is installed inside a kitchen faucet to redirect the water from the faucet spout to the faucet sprayer when you press the sprayer trigger. When you squeeze the trigger, the water pressure drops to engage the diverter. This stops the water flow at the spout and moves it to the sprayer. In most cases, the sprayer stops working due to a clogged or damaged diverter. If you need this replacement diverter kit, you can start placing your order, by clicking on Add to Cart and entering the required information. Thank you for trusting PlumbersStock.com!