Comparison : Item # B 100CI, 1 Inch (in) Size Plated Iron Type B Female NPT X Male NPT Cam and Groove Coupling
Item # B 150CI, 1 1/2 Inch (in) Size Plated Iron Type B Female NPT X Male NPT Cam and Groove Coupling
Item # B 200CI, 2 Inch (in) Size Plated Iron Type B Female NPT X Male NPT Cam and Groove Coupling
Item # B 300CI, 3 Inch (in) Size Plated Iron Type B Female NPT X Male NPT Cam and Groove Coupling
Item # B 400CI, 4 Inch (in) Size Plated Iron Type B Female NPT X Male NPT Cam and Groove Coupling