URA Series rupture disk can be used in liquid or gas systems and functions at very high or low burst ratings. Disk is suited for up to 95% of typical fluid system applications. Its design allows it to be used in place of several different types of rupture disks, allowing users to reduce costs by minimizing stocking needs. Disks range in size from 1-8" and are available in 316 sst, hastelloy, monel, inconel and nickel. Reverse acting design results in system pressure being applied to the convex side of the dome which enhances the unit's performance in systems with frequent cycling needs. Disk is also easy to install. ZOOK Enterprises, LLC Box 419 Chagrin Falls, OH, 44022-0419