The Pelican CG-AL-3020-DA is an aluminum cam-and-groove reducer, combining a Part D (female coupler) on one end with a Part A (male adapter) on the other, allowing a 3 inch hose connection to step down to a 2 inch line.
Size: 3 inch x 2 inch
Material: Aluminum
Configuration: Part D x Part A (female coupler x male adapter)