Wedeco UV systems are made in Europe. They had bought Ideal Horizons then discontinued the full line. We have spares for Ideal Horizons in a section listed Ideal Horizons. You may also hear Wedeco referred to as ITT as they bought Wedeco. Also Xylem as ITT was split into several companies with Xylem handling the UV. With all of the buyouts and mergers quality and consistency have been compromised. Big Brand Water Filter manufacturers UV lamps and quartz sleeves for Wedeco/Xylem systems. Our UV lamps and quartz sleeves are 100% made in USA and guaranteed to meet or exceed OEM specs.