Comparison : Item # 511-143-44-1, 1/4 Inch Hose Inner Diameter Nylon Plastic Hose Barb Compression Fitting Insert for Swivel Nut Adapter
Item # 511-143-66-1, 3/8 Inch Hose Inner Diameter Nylon Plastic Hose Barb Compression Fitting Insert for Swivel Nut Adapter
Item # 511-143-88-1, 1/2 Inch Hose Inner Diameter Nylon Plastic Hose Barb Compression Fitting Insert for Swivel Nut Adapter
Item # 511-143-48-1, 1/4 Inch Hose Inner Diameter Nylon Plastic Hose Barb Compression Fitting Insert for Swivel Nut Adapter
Item # 511-143-48-1F, 1/4 Inch Hose Inner Diameter Nylon Plastic Hose Barb Compression Fitting Insert for Swivel Nut Adapter