Manufactured by Vaper, part number 19402. Lightweight durable blow gun has venturi tip that magnifies pressure up to 4 times. Large trigger handle design for comfort. Working pressure is 90-120 psi, max pressure 220 psi. 1/4" NPT. 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.