While Price Printer stands behind their products, I have gone thru MANY replacement sprayer heads on this model!  Within 18 months it inevitably starts leaking from the flow control and the topside. In addition it is almost impossible to get the sprayer insert off to soak in vinegar. I worry about ruining the finish if I use a plastic bag filled with vinegar to the sprayer.  It has just started leaking YET AGAIN this week. I will be looking for a new faucet, but I don't think it will be a Price Pfister!