NFPA Contact-less Claw The triplex modular stacking configuration allows two vacuum pumps to be stacked on one side and one vacuum pump situated on the other side of the receiver tank. For certain sizes, stacking three vacuums vertically on one side is also possible. This modular or field separable design allows for ease of shipment and handling on site. Vacuum System Pumping chamber operates oil-free and vacuum pump is completely air cooled with no water requirements UL listed control panel in a NEMA 12 enclosure with a 5.7" Touch Screen Display Ethernet connectivity with embedded web-page for remote monitoring, password protected for remote adjustment of all operating parameters Inside of the receiver consists of a two-part epoxy coating providing rust protection equal or better than that achieved by galvanizing System is modular or field separable, allowing for ease of shipment and handling on-site