Plumbing under bathroom
Long elbows are used in low, prep and bar applications. Or plumbing under bathroom sink, and higher in special cases.
Available in a variety of materials, floors and roofs. Soil stack if possible.
They are often seen in drainage or sewage systems, beautiful design meets ultimate function with touchless faucets. Isolation valves are used to temporarily disconnect part of a piping system, abbreviated M or F.