No other exit device offers the level of functionality and dependability as this Grade 1, heavy-duty exit device. Built with fewer components and in various door configurations, the APEX 2000 provides smoother operation with minimal need for maintenance. The APEX 2000's durable construction allows it to withstand high traffic and high use on a regular basis, making it particularly attractive for healthcare and education buildings. These combined benefits give it a longer life span and a lower overall cost of ownership. Investment cast steel chassis provides maximum security against forced entry and reduces the risk of bending. Universal active case and end cap mounting holes enable the APEX 2000 series to retrofit other manufacturers' devices. Successful completion of 10 million operational cycles, far exceeding the minimum 500,000 cycles required by Grade 1 standards. Few moving parts with single spring push-bar operation means no parts or maintenance kits are required. Rubber bumpers reduce functional noise. All fire exit conforms to UL10C and UBC 7-2 for a door opening 4'W x 10'H. Consult with door manufacturer for specific limitations on fire door assemblies. Vandal resistant trim is a heavy duty lever trim designed to withstand abuse and vandalism. Composed of extra strength shock-absorbing "overload" springs and heavy duty investment cast stainless steel internal components. Lever returns to the "home" position eliminating the need to reset the lever.