44221111 - Double-glazed units

CPV code 44221111 in the EU Common Procurement Vocabulary refers to Double-glazed units. It sits at level 6 of the CPV hierarchy as a subcategory within the 44 division. This code is nested directly under 44221100, narrowing the broader category into the specific area of double-glazed units. As a leaf code, 44221111 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns double-glazed units. Contracting authorities across the EU use 44221111 in TED notices and national procurement portals to signal that a tender relates to double-glazed units.