With an easy-access mounting system and an innovative plaster guard with integrated depth indexing, Treysta is engineered to install smooth and quick. Treysta features quarter-turn service stops that open and close with a flat head screw driver in the slot or pliers on the flat sides for ease of maintenance. The unique, reversible test plug accommodates full system tests, as well as hot, cold, and cross-flow tests. Treysta has a solution for “with” and “without” stops, and accommodates back-to-back installations and reversed hot and cold inlets, as well as IPS / sweat, Crimp PEX, and Cold Expansion PEX. The compact, brass-forged body of the valve features integrated mounting holes for a firm and secure hold, and the flat plane of the plaster guard allows it to install level with the wall. Treysta uses a common platform of pressure balance cartridge for all configurations, meaning that a single cartridge fits in all valve bodies.