A straight brass low-pressure reducing coupling is a fitting used to join two pipes of different diameters.
It is made of brass, a corrosion-resistant and durable material.
This type of coupling has a straight connection on one end and a reducing connection on the other end, allowing two pipes of different diameters to be securely and leak-free joined.
Low pressure refers to the coupling's ability to handle lower pressures than high-pressure connections.