2 – Used Jacketed 2BBL insulated fermenters from Stout Tank Bought used, work great we just need bigger tanks. Glycol jackets in good shape, gets down to temp & holds very quick.  Here is the details from Stout Tank webiste Material: Premium virgin 304 Stainless Steel Capacity: 84 gallons Thermowell for your temperature settings Dial Thermometer Butterfly Valves Conical Fermenter Welded-on Legs Rated to pressurize up to 4 PSI Glycol Cooling Jackets on sides with 1/2″ NPT fittings Sanitary 1.5″ Tri-Clamp Thermowell Lid (2) 1.5″ Butterfly Valve Tri-Clamps and gaskets 3″ Tri-Clamp Port in lid with 1/2″ Hose Barb 90-degree 1.5″ Trip Clamp Thermowell $1600 Each