5/16" x 1/4" Female Quick Coupler, Male Flare with Schrader Core in Male End

Yellow Jacket 19173 5/16" Female QC x 1/4" Male flare. All couplers have Schrader valve cores in Male flare end. Female coupler end has deep knurling for easy handling. Patented CH14 Adjust-a-Valve opener in all 1/4" Female ends. The Yellow Jacket 19173 is Made in the USA.