Watts LFF115 74 THD B 20 175 PI 50 145 2 Part of the LFF115 74 Series Drain Fitting 00 Maximum Working Pressure PSI 300 00 Maximum Working Pressure PSI 300 Outlet Connection Size 1 1 2 IN Outlet Connection Type Female Threaded Outlet Thread Type FPT Part Number 0856744 Series CSM 61 T Valve Style Ball Specification Sheet CSM 61 Egress window wells are now required in all basement living spaces per the International Residential Code (IRC) for use in emergency situations This pressure reducing control valve is designed to automatically reduce a fluctuating higher inlet pressure to a constant lower downstream pressure regardless of varying flow rates Globe body pattern with threaded end connections