Description:Adapt from 1/8" Male to 1/4" Female NPTUsed for air locking differential plumbing10 fittings per packUse of thread locker suggestedSolid brass constructionPackage Includes:10 Pieces 1/8" Male x 1/4" Pipe AdaptersNote:Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above.