First off, to my knowledge, it is the only supply house in the area open past 5pm. And I needed a part for my water heater. The woman on the telephone was super nice and helpful and told me they had the part I needed. In fact, when I got there, she told me to double check this and that on my water heater before I installed the part, just to make sure it wasn't something else. Turns out I did need the part and it worked as it should. I'm very grateful for Schmidlin!