1 & 1/2" Adaptor Male/Female D20003

An adaptor is a fitting that facilitates the connection between two components with different sizes, types, or genders. In this context, it allows for the transition between two pipes or fittings with different diameters.1 & 1/2": This refers to the size of the fitting or the pipes intended to connect. In this case, it means that one end of the adaptor has a 1 & 1/2 inch diameter. The measurement may be based on the inner diameter (ID) or the outer diameter (OD) of the pipes or fittings.