The M-SLIDE EXPANSION JOINT is manufactured for application where movement is anticipated. The self-aligning two-piece design allows for 1-inch vertical movement while maintaining a watertight assembly for plaster walls. M-Slide Expansion Joint is part of CEMCO’s Water Management line of stucco accessories fabricated from minimum 0.018-inch hot-dipped galvanized steel complying with ASTM A653 having a minimum G-90 coating complying with ASTM A 925.