Thank you TJLogs so much for the feedback you posted on the Home Depot website. Moen takes consumer comments very seriously and we are delighted to have the opportunity to assist you. The Moen Sleek Single-Handle Pull-Down Sprayer Kitchen Faucet with Reflex and Power Clean in Matte Black includes a warranty with purchase. Replacing the cartridges to stop your leak/drip is normal maintenance for your product. Cartridges do not have a life expectancy as a number of factors can cause them to fail including quality of water, debris passing into it, and amount of use. I would recommend ensuring that the valve is cleaned and flushed prior to installing the new cartridge. If you need assistance with a Moen product, please contact us directly at 800-289-6636. Our business hours are 8:00 a.m. - 7:00 p.m. Monday through Friday Eastern Time.