Green Initiative Remanufactured Drum Unit for Brother DR520 High performance, guaranteed replacement drum unit from Green Initiative. Replacement drum for Brother MFC, HL and DCP series machines (see full compatibility below). Approximate yield: 25000 pages at 5% page coverage Feel good about your purchase with a green, recycled product which provides the same performance and reliability as original Brother supplies. Helps protect our environment by containing recycled components, resulting in over 90% of the original cartridge's non-wearing parts from needlessly clogging landfills.