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Auxiliary gutters are gutters that are installed alongside the main gutters of a building. They are used to collect overflow rainwater from the main gutters and direct it to a downspout. Auxiliary gutters are typically smaller than main gutters and are often installed on the lower roofs of a building. They are also sometimes used to collect water from valleys or other areas where the main gutters cannot reach. In the NEC, auxiliary gutters are defined as "gutters that are installed to supplement the main gutters of a building."Conduit bodies are enclosures that are used to house and protect electrical wires and cables. They are typically made of metal or plastic and have a variety of openings for connecting conduits. Conduit bodies are often used in commercial and industrial buildings to protect wires and cables from damage. In the NEC, conduit bodies are defined as "enclosures that are used to house and protect electrical wires and cables."Pull boxes are enclosures that are used to provide access to wires and cables for pulling or splicing. They are typically made of metal or plastic and have a removable cover. Pull boxes are often used in commercial and industrial buildings to provide access to wires and cables for maintenance or repair. In the NEC, pull boxes are defined as "enclosures that are used to provide access to wires and cables for pulling or splicing."Junction boxes are enclosures that are used to connect two or more wires or cables. They are typically made of metal or plastic and have a variety of openings for connecting wires and cables. Junction boxes are often used in commercial and industrial buildings to connect wires and cables for power distribution. In the NEC, junction boxes are defined as "enclosures that are used to connect two or more wires or cables."I hope this helps to clarify the difference between these four terms. Please let me know if you have any other questions. Flag for review