We ordered our Dowtherm SR-1 on Tuesday and had it Wednesday. Great customer service and product is exactly as described.
I am very happy with my purchase from PSC. I tried ordering from a company that I had ordered from before, but they would no longer sell to me because of my distance from them. When I called PSC, they were more than happy to allow my purchase, very professional and helpful, and the shipping was quick. I will stick with them in the future, no doubt about it!