The DOOR-P12 is a smoked plexi door that is designed for use with the Essex MMR Series. This door is compatible with both the front and rear of the Essex MMR Series, making it a versatile option for those who need to access their equipment from both sides. The DOOR-P12 is a cost-effective solution for those who need to add a door to their rack system. The smoked plexi design of the door provides a sleek and modern look, while also allowing users to easily see their equipment. The DOOR-P12 is a high-quality and reliable solution for those who need to protect their equipment from dust and other debris. With its easy installation and durable construction, this is an excellent choice for anyone looking to add a door to their Essex MMR Series rack system.