This is my fourth Zero water product over the years. I've had two pitchers then I bought the 30 cup plastic (all worked excellently). I use filtered water for tea and cooking, so this is a crucial addition to the health arsenal. Unfortunately, when I got this 40 cup glass unit, Fedex delivered  box of shattered glass (I was so upset). I called customer service and they sent me a replacement. It's now sitting prettily on my countertop. Has smaller footprint than 30 cup unit. Thanks for great product and great service.