The RS PRO metal reducer is a device used to adapt the entry size of a cable gland to fit a smaller cable or conduit. It reduces the diameter of the entry point in the gland or equipment housing, allowing you to secure cables with smaller diameters than the original entry size of the gland or the equipment.

The RS PRO reducer's primary function is to adapt a larger threaded entry (for example, M25) to a smaller one (like M20) to accommodate cables that are smaller in diameter. Made of brass with nickel plating, it is commonly used in electrical installations where the cable or conduit size is smaller than the designed entry point on the equipment or enclosure.