THIS SEEMS LIKE A DEHYDRATOR THAT IS FROM A SMALLER COMPANY WHERE THE UNITS ARE HAND MADE. THE ROTO TAPE LABEL WITH WHAT APPEARS TO BE A SERIAL NUMBER OR MODEL NUMBER IS A GIVE-AWAY. IT IS WELL MADE WITH WOOD, AND PARTICLE BOARD CASE, HEAVY PLEXI-GLAS SLIDING FRONT. THE TRAYS ARE PLASTIC, BUT SEEM DURABLE. NO DIRT OR DEBRIS INSIDEAT ALL, THAT I CAN FIND. HAS A DECENT MOTOR, AND METAL CAGE CONSTRUCTION. THIS IS A WELL-MADE UNIT, BUT I CAN NOT FIND ANY INFORMATION ABOUT THIS MODEL, OR THIS COMPANY. ANY INFORMATION OULD BE GREATLY APPRECIATED. THE TRAYS ARE FAIRLY CLOSE TOGETHER, BUT MOST ARE. TRAYS ARE ABOUT 15 X 18. I'M GUESSING, BUT 15X18X12 =OVER 3200 SQ. INCHES, OR OVER 22 SQ. FT. OF SURFACE. I PLUGGED IT IN, AND IT SEEMS TO WORK FINE. I DID NOT DEHYDRATE ANYTHING WITH IT, BUT IF NOONE WANTS IT, I WILL DEFINITELY BE ON THAT.