Comparison : Item # NPT150SS6, 1 1/2 Inch (in) Pipe Size 316 Stainless Steel NPT Threaded Raised Face ANSI B16.5 Forged 150 Flange
Item # NPT200SS6, 2 Inch (in) Pipe Size 316 Stainless Steel NPT Threaded Raised Face ANSI B16.5 Forged 150 Flange
Item # NPT300SS6, 3 Inch (in) Pipe Size 316 Stainless Steel NPT Threaded Raised Face ANSI B16.5 Forged 150 Flange
Item # NPT400SS6, 4 Inch (in) Pipe Size 316 Stainless Steel NPT Threaded Raised Face ANSI B16.5 Forged 150 Flange
Item # NPT600SS6, 6 Inch (in) Pipe Size 316 Stainless Steel NPT Threaded Raised Face ANSI B16.5 Forged 150 Flange