Reduced nipples for refrigeration, air conditioning and sanitary installations. A reduced nipple facilitates the connection between components with different diameters (reduced nipple 1 3/4, nipple 1/2 3/8, reduced nipple of ...1 1/2, etc.). Refrigeration fittings with outstanding utility in the field of HVAC-R and versatile installations. The uneven threaded nipples allows the size of one pipe to be adapted to another, ensuring a tight connection and a smooth transition between pipes of different diameters. All flared reduced nipples in this category are made of copper with refrigeration grade. Mai mult