Image Pressure Reducing Valve In-Line Adjustable Product Options Part Number Size Thread Material BR4-015 1/2" (15 mm) BSP Bronze BR4-020 3/4" (20 mm) BSP Bronze BR4-025 1" (25 mm) BSP Bronze BR4-032 1-1/4" (32 mm) BSP Bronze BR4-040 1-1/2" (40 mm) BSP Bronze BR4-050 2" (50 mm) BSP Bronze