Liston water distillers (also known as water stills) are only made with high quality stainless steel (Titanium added AISI 321 – for all parts that contact water and steam and AISI 430 for outer body). Distillate, produced with Liston distillers has conductivity approximately 2.5 microSiemens. All parts for installation (hoses, etc.) are included. All distillers are CE-marked and have 2 years of worldwide warranty.