Carbon Steel 3" Flange with National Pipe Tapered (NPT) Pick One Side_5 inch If you have two swivel

If you have two swivel female FDC brass connections that need plugs measure the INSIDE diameter of the swivel fitting

Female 2 1/2 inch NPSH

Kochek 5 inch Storz Outlet x (2) 2 1/2 inch Female NH / NST Clappered 2-Way Siamese Valve

Carbon Steel 6" Flange x 4 1/2" Male NH

Carbon Steel 3" Flange with National Pipe Tapered (NPT) Pick One Side_5 inch If you have two swivelNational Pipe Tapered (NPT) Carbon Steel Flange. ASA Forged Flanges have raised shoulder with no raised face. National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. ANSI was originally formed in 1918, when five engineering societies and three government agencies founded the American Engineering Standards Committee (AESC). In 1928,