Thin-wall conduit | Article about thin-wall conduit by The Free Dictionary
Electric conduit which has a wall thickness insufficient for providing threads; the ends are joined by couplings which slip over the ends and which are held in place by setscrews.
References in periodicals archive
* Thin-wall conduit
, also known as EMT (electric metallic tubing), comes in inside diameters of 1/2" to 4"; 1/2" is most common.