The AT19RNS20 mounting pattern matches the 19 and 000 BTU/hr (5 and 568 Watt) Fractional Tonnage 230v 50/60hz Stainless Steel Industrial Cabinet Cooler w/ 2 and 000w Electric heat. Made in the USA. without any modifications or adapters.
With an optional adapter plate, the AT19RNS20 can mount up to: