Stainless steel 304High quality Butterfly valves,Website:http://www.beerbreweryequipment.net, sample valve,PVRVClamps and gaskets, pressure gauge4 stainless steel legs with stainless leveling footpadsInterior shell: 304 stainless steel, thickness 11 gaugeExterior shell: 304 stainless steel, thickness 14 gaugeInterior and exterior sanitary finishInterior finish pickled and passivatedExterior SUS304 2B finishFully welded exterior shell60 degree cone bottom, with an average of 25% head spaceRotating racking portSide manway door, shadowlessDual zone dimple cooling jackets (3 or more on larger tanks)2" Polyurethane insulation2" C02 blowoff arm for maximum tank space utilizationCIP arm and spray ballSanitary tri-clamp connections