To enable connection between both smooth pipe materials, connection between both corrugated pipe materials or connection between the smooth pipe material and the corrugated pipe material and holding of intermediate portions of the corrugated pipe materials and holding intermediate portions of the smooth pipe materials, if required, by using a common pipe material holder.

The pipe material holder 6 having a plurality of connection ports 5 comprises a base 2 to be mounted on a wall face 1 and a cover 4 to be connected to the base 2 so as to hold the pipe materials 3 such as air- conditioner pipe ducts in a space to the base 2. A plurality of protruded portions 7 are provided on the inner face of at least one of the base 2 and the cover 4 so as to position the ends of the plurality of pipe materials 3 to be connected to the plurality of connection ports 5 of the pipe material holder 6. The plurality of protruded portions 7 are spaced from each other and fitted to valley portions 8 of the corrugated pipe materials 3a so as to hold the corrugated pipe materials 3a having corrugated peripheral walls passing from one connection port 5 to the other connection port 5 of the pipe material holder 6.