Manufactured by Vaper, part number 19437. 1/4-Inch NPT Universal Female Coupler features Overall length: 2-Inch. Inlet fitting: 1/4-Inch NPT female. For use with A, M, and T-Style fittings. Free Shipping is for continental USA only. If you live in Alaska, Hawaii, or PR please contact us for a shipping quote before bidding. All items are sold as shown. Since we offer free shipping we will ship the items the cheapest most cost effective way possible.