Firetrace's E4 engineered clean agent total flooding system is FM aproved and offers 500 PSI 3M Novec 1230 systems. E4 systems are pressurized to 500 psi in low-pressure hardware. The increased pressure of E4 offers large design flexibility and low hardware and installation costs. E4 systems use little piping and provides large liquid agent to pipe volumes without the use of nitrogen driver systems. Systems are available in eight cylinder sizes with fill volumes ranging from 8 to 1300 lbs, and complie with every aspect of NFPA 2001-2012.