Specifications include, but are not limited to: 9 Dehydrator Air Dryers. Each unit shall be new and shall perform equivalent to the Radiodetection 850C model Dehydrator Air Dryer. Minimum Specifications shall be: Fully automatic, self-contained compressor dehydrator that provides a dry air source for a volume of 850 S.C.F.D., with a dry air dew point at -40 degrees F or below. The unit shall contain a large ASME air storage tank and be capable of producing a minimum pressure of 45PSIG to the tank. It shall have an adjustable output pressure of 2 to 15 PSIG. It will operate on 115 volt, 60 Hz and have a compressor circuit protection. It shall be a tabletop/shelf mounted unit. The output connection shall fit 3/8 O.D. tube fitting.