Comparison : Item # PCIBU0100, 1/4 x 1/8 Inch (in) Size BMI Black Malleable Iron Threaded Hex Bushing Fitting
Item # PCIBU0201, 3/8 x 1/4 Inch (in) Size BMI Black Malleable Iron Threaded Hex Bushing Fitting
Item # PCIBU0301, 1/2 x 1/4 Inch (in) Size BMI Black Malleable Iron Threaded Hex Bushing Fitting
Item # PCIBU0302, 1/2 x 3/8 Inch (in) Size BMI Black Malleable Iron Threaded Hex Bushing Fitting
Item # PCIBU0401, 3/4 x 1/4 Inch (in) Size BMI Black Malleable Iron Threaded Hex Bushing Fitting