Vaporizing refrigerant charging tool with visual inspection window

A vaporizer, comprising:

• an inlet member for connection to a liquid source, said inlet member comprising a hose nut having one or more axial vent slots;
• a cylindrical connector member having a plurality of axial bores in fluid communication with said inlet member, and a plurality of radially extending members disposed on an exterior of said cylindrical connector member and exposed to an ambient for transferring ambient heat to fluid present in said plurality of axial bores to vaporize said fluid in said plurality of axial bores;
• a body coupled to said cylindrical member and having a centrally located axial bore extending therethrough, wherein said centrally located axial bore is in fluid communication with said plurality of axial bores within said cylindrical connector member;
• said body further comprising at least two radial apertures that allow visual access to said centrally located axial bore;
• and
• a hose connector assembled to said body and in fluid communication with said centrally located axial bore;
• wherein, when said vaporizer in use is connected to said liquid source, said plurality of axial bores contains the vaporized liquid.