Abstract: A finned tube comprising a tube and a texturized solid fin attached thereto, the fin having a proximal edge and an opposite distal edge, the proximal edge being attached helically to the tube so the fin extends outwardly from the tube, the fin having two opposite faces extending from the proximal edge to the distal edge, the two faces of the fin being texturized by regular, small female impressions. In one embodiment the fin is texturized at a location between a fin material supply station and the point of attachment of the fin to the tube. In another embodiment, the fin is texturized at the fin attachment station.