Got them on e-bay from a seller called 'growerssolution'. Bought a five pack of them. They were priced a little high, so was shipping. Hoping to get a few years of use out of them. Got the 1020 flats they fit into at Menards for .99 cents a piece. 38 cell star/ hex plug deep tray/ tree plug seedling tray, in the seed starting and cloning section of garden supplies. I think they have web site off of ebay, also.
