Neenahs CPR cover will rise 3 to 4 inches from it's frame during an explosive electrical event releasing the pressure, harmful gases and flames. Specially designed exhaust ports on the underside of the cover help direct those dangers low and to the ground while attempting to prevent the inrush of oxygen that might fuel a secondary event. At the conclusion of the event the cover re-seats itself in it's frame. The cover is maintenance free, available in any diameter and works with many existing frames.
Neenah Foundry has also engineered an ergonomic lifting tool that makes the removal and replacement of the cover effortless. This sturdy lid Lifter is built using steel components and weighs under 30#. It also telescopes for compactability and takes up very little space in the truck.