NEW never used thermostat Honeywell

I bought the wrong thermostat that is not compatible for my old water heater and I lost the receipt from HomeDepot store so I couldn’t return it, so my loss is your gain. Never unused , it’s new but no box . Details about the thermostat, Honeywell Home Manual 2-Wire Electric Baseboard Heat Thermostat : https://www.homedepot.ca/product/honeywell-home-manual-2-wire-electric-baseboard-heat-thermostat/1000429052 Model # CT410A1001/E1