IPEX XFR 110070 4X12FT PVC DWV PIPE

System XFR® Pipe, Nominal Pipe Size: 4 in, 3.95 in ID, 4-1/2 in OD, 12 ft Length, 0.24 in Wall Thickness, SCH 40 Schedule, Welded Method of Manufacture, PVC, Dark Gray, 140 deg F

Contractors installing DWV pipe-in high buildings and plenums had few alternatives to heavy cast iron and copper. IPEX® has changed that. System XFR® is the world's first PVC DWV system rated for high buildings and air plenums where the national building code mandates more stringent flame spread and smoke development requirements which previously limited the use of thermoplastic. Suitable for use in non-combustible environments, system XFR® advanced material has a flame spread rating of 25 and smoke developed classification of 50 which permits it to be installed in high buildings and air return plenums in accordance with local codes and in addition to its flame and smoke attributes, system XFR® delivers all the performance advantages you'd expect from thermoplastic piping.