SDC's UniFLEX 55 series universal electric strikes retrofit existing ANSI 4-7/8" strike prep without centerline relocation. Choice of six application faceplates provide compatibility with cylindrical locks, mortise locks with or without deadbolts and mortise exit devices. Factory tested up to 2500 lbs, features include 2 deadlocking cams, no hot keeper, no voltage regulator required, reversible failsafe/failsecure, horizontal alignment adjustment, 12/24VDC, exceeds 1,000,000 cycles. ANSI Grade 1 Heavy Duty compliant, WH and UL Listed, 3 Hr Fire Rated and Burglary Resistant. Information: www.SDCsecurity.com.