... 400L4pcsinside and cladding are stainless steel, double-wall, insulation is polyurethane foam 04Bright beer tank400L2pcsDouble wall tank, inside and cladding are stainless steel ... . 05Cool water tank600L1pcsInside and cladding are stainless steel, double-wall, insulation is polyurethane foam 06Sterilizing tank ...