Engineered without any drive seals, the QDM line offers a leak free, pulse-less, magnetically driven operation. Designed to operate with virtually no mechanical friction, the QDM is ideal for projects with constraining factors such as reduced audible operation, reduced power consumption, and leak-proof reliability. The line is offered in several made to order configurations and is available in a variety of materials, port sizes, and motors. The QDM has been engineered so that its packaging can be easily modified to fit and even retro-fit into virtually any project. In fact, the pump head is easily removable and economically replaceable for projects with contamination factors.