Spec/Grades A/SA182 (F304/L, F316/L, F317/L, F304/H, F321/H & F347/H) Type/Sizes RF/FF/RTJ in Weld Neck, Socket Weld, Blind, Slip-On, Threaded, Orifice 1/2” to 24” - 150#, 300#, 600#, 900#, 1500#, 2500#, all schedules through XXH