or tubing

size of pipe (or tubing)

Unless otherwise stated, the nominal size by which the pipe (or tubing) is commercially designated; actual dimensions are given in applicable specifications.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Corrugated pipe or tubing systems include seven standard models for 1/8- to 60-in.
The advantage of this method is that it does not require the facility to produce hose or tubing. The disadvantage is that the composition of the fuel will change with time since its components will not permeate the rubber at the same rates.
A length of hose or tubing, usually 300 mm, is plugged at each end and contains a specified volume of fuel.