M-Duplex pump is similar to the block type type in that it uses the components of the mini type multi stage vacuum pump. The pumps are mounted onto a dual station manifold. This manifold enables compact and simple installation. The manifold can accommodate two VTM30 pumps thus producing a VTM60, which gives high flow rates in a compact format. A vacuum switch can be ordered with the unit which piggy backs one of the pumps again for compact and easy installation. There is an option for mounting the exhausts one either side or both on one end of the manifold. There is also the option of connecting vacuum and air supply connections on either side of the manifold block, vacuum connections are 1/2" BSPX2.