Manufactured using German engineered and produced high quality polyethersulfone media, the SPECTRUM PPPES provides assured and certified absolute bacteria retention characteristics. Lot coded and 100% individually tested, the high surface area media contains no adhesives or binders, with low extractable content offering consistent final product quality. Meeting industry standard requirements, the cartridges are WRAS approved, FDA Title 21 Compliant and meet USP Class VI-121 DegC Plastics.