Shopping Cart (0) Quotes (0) Express Ordering All Categories > Piping > AQUApipe Stainless Steel Piping > Fittings > American National Standard Institute (ANSI) Female Threaded Flanges > Advanced Search Advanced Search in American National Standard Institute (ANSI) Female Threaded Flanges Unit of Measure Imperial Metric Both Specifications National Pipe Thread (NPT) Diameter (in) No Preference 1 1-1/2 2 2-1/2 3 Flange Size (in) No Preference 1-1/2 2 3 4 5 6 Clear Cancel Advanced Search