Johnson Controls announces the expansion of its line of commercial fire sprinklers. Designed to deliver safe and dependable fire protection, the Tyco RFII Horizontal Sidewall (HSW) Concealed Sprinkler offers an aesthetically pleasing solution for modern commercial building environments. The 5.6 K-factor sprinkler features a unique, decorative flat-plate cover that conceals the sprinkler within a wall and discreetly blends in with modern building environments. Designed for installation along a wall or the side of a beam. It fits in a typical two-by-four stud frame and sheetrock wall structure, giving contractors and facility personnel additional installation flexibility.