Brass Reducing Bush M 1/4 BSP x F 1/8 BSP Brass Reducing Bush M 3/8 BSP x F 1/4 BSP Brass Reducing Bush M 1/2 BSP x F 1/4 BSP Brass Reducing Bush M 1/2 BSP x F 3/8 BSP Brass Reducing Bush M 3/4 BSP x F 1/2 BSP