Image T-Series Female NPTF Ball Coupler Jump to Section Product Options Related Products Product Options Part Number Length Maximum OD Body Size Thread Thread Size Pipe Thread Material 2TF2 2.09" (53.09mm) 1.13" (28.70 mm) 1/4" Female NPTF 1/4" - 18 NPT / NPTF Steel 3TF3 2.54" (64.6 mm) 1.37" (34.7 mm) 3/8" Female NPTF 3/8"-18 NPT / NPTF Steel Related Products Image T-Series Ball Coupler Seal Kit Image T-Series Dust Cap Image T-Series Dust Plug Image T-Series Female NPTF Ball Plug Image T-Series Female NPTF Poppet Plug Image T-Series Male NPTF Ball Coupler Image T-Series Male NPTF Poppet Coupler