Febco LFFRK 876 86 BPC 21 2 3 Part of the RK LF876V LF886V Series Basement Window Well Automatically reduces fluctuating high upstream Automatically reduces fluctuating high upstream pressure 60 Maximum Pressure PSI 400 Maximum Working Pressure And Temperature 400 PSI at 210 degrees F Outlet Connection Size 3 IN Outlet Connection Type Female Threaded Outlet Thread Type NPT Part Number 0379118 Plug Material Brass Pressure Temperature Rating 400 PSI at 210 degree F Pressure Temperature Rating BAR 27 Features Factory replacement parts This assembly kit includes the parts (less mounting bracket) necessary to repair or replace the CFM Type II bypass of a 2 1 2 to 3 inch N pattern double check or reduced pressure zone detector assembly