From The Viking Corporation, it has added a 25.2K ESFR pendent sprinkler. An extension of prior ESFR technology, there are more options and flexibility for the most challenging storage applications. This roof-mounted K25.2 sprinkler meets FM guidelines for protecting buildings to 45 ft. in height that have storage up to 40 ft. high. With higher K-factor, the K25.2 handles lower end head pressures than 14K ESFR sprinklers. As a result, smaller - and less expensive - pipe, fittings and hangers can be used, and costly system fire pumps can be downsized or eliminated.