C900 product line, Vinylplex, Inc. 4" - 12" CIOD pipe produced to the following (Dimension Ratio) (Pressure Class) DR25 PC100* DR18 PC150 DR14 PC200 Vinylplex, Inc. is proud to inform you that this product line is manufactured and/or tested to the following: ANSI/AWWA C900-97, PVC Pressure Pipe for Water Distribution FM Approved to Class Number 1612 for Underground Fire Protection Service (DR14 and DR18 products only) Tested and Certified by NSF International to NSF/ANSI Standard No. 61 UL Listed -- PVC Distribution Pipe PVC Material Type 1, Grade 1 (12454-B), designated as PVC 1120 Standard laying lengths: 20' Rieber type gaskets: Conform to ASTM F 477, Elastomeric Seals for Joining Plastic Pipe Gasket Material is a UL recognized component for Fire Main Equipment Vinylplex, Inc. takes great care to manufacture its products to every aspect of referenced industry standards in order to ensure the highest of quality for your piping applications.