Check the listing for details. 1/2" Adjustable Honeywell Pressure Reducing Valve c/w Gauge Port 1.5 - 6.0 Bar. Condition: New, Made in Unknown. Listed at 110.88 USD. Honeywell Pressure Reducing Valve Adjustable Honeywell Metal WRAS Approved Pressure Reducing Valve c/w 1/2" BSP Female (And 3/4" BSP Male) Threads & Gauge Port Spring loaded, balanced seat - constant outlet pressure regardless of fluctuating inlet pressure Lightweight Simple, compact construction Outlet pressure tapping for gauge 1.5 up to 6 bar adjustable outlet pressure The D04FS-1/2A Honeywell pressure reducing valve is designed to protect household appliances against excessive supply pressures. By installing a pressure reducing valve, water consumption can be drastically reduced. Water flow noise and over-pressurization damage are avoided. These valves are used to control water pressure on basin, sink or bath outlets. .