Comparison : Item # W116-2, 1/8" Thread Size Compliant Yellow Brass Male to Male Pipe Hex Nipple Fitting
Item # W116-4, 1/4" Thread Size Compliant Yellow Brass Male to Male Pipe Hex Nipple Fitting
Item # W116-6, 3/8" Thread Size Compliant Yellow Brass Male to Male Pipe Hex Nipple Fitting
Item # W116-8, 1/2" Thread Size Compliant Yellow Brass Male to Male Pipe Hex Nipple Fitting
Item # W116-12, 3/4" Thread Size Compliant Yellow Brass Male to Male Pipe Hex Nipple Fitting