The membrane filter elements shall be genuine new, unused, standard 8-inch diameter by 40-inch long, thin-film composite, spiral-wound type FilmTec XLE-440i, without exception. Specifications to meet Product Data Sheet. Elements shall have a reinforced fiberglass outer wrap, and the element’s serial number, model number, and a flow direction arrow shall be clearly marked on each. The membrane shall be a composite material fabricated of a polyamide type membrane layer on a polysulfone support. Each element shall be iLEC™ interlocking type with O-rings, element-to-vessel connectors with O-rings, and reject seals. O-rings and reject seals shall be EPDM and shall be standard products available from vendors other that the element manufacturer
