Our tri clamp concentric reducers are made from 304 stainless steel and come with a high-polish finish. Concentric reducers are reducers which share a common center-line, resulting in a cone shape. These reducers also feature a 1/4" NPT fitting half way down the reducer, perfect for bottom fill or bi-flow systems.
The downside of concentric reducers is that they can be quite long, adding to the height of your system. If space is important, a hemispherical bowl reducer may work better for you.