Zone control adjustable TRU valve for in-line applications to regulate high-pressure sprinkler, standpipe and combined fire protection systems. Indicator bonnet shows whether valve is open or closed. Capable of regulating inlet pressure to 400 PSI/27.5 bars. Cast brass with rising stem. Internal parts: brass and stainless steel. Red aluminum handwheel. 2.5 inch female NPT inlet and outlet with monitor switch adapter.