3/4?? Straight Air Piping Fittings, 3/4?? X 1/2?? Male Npt Threads Adapter Product Features This 3/4??x 1/2?? Male NPT Thread air piping straight fittings feature a compression fitting style to make fast and easy connections. Material:This straight air line fittings are made of nickel-plated brass for durability and corrosion resistance. Sealing: Double O-ring compression style fitting, no glue, soldering or crimping needed, can be removed from fitting if needed. Size: 3/4 Inch air piping size with 1/2 inch Male NPT Thread Size, straight air line fittings type 200PSI Working Pressure. Easy to Install: Bevel the inside of the piping by inserting the reaming tool and rotating it. Remove nuts and split ring from fittings and place on piping; Push the fitting onto the piping and fully against the shoulder of the fitting; Turn the nut finger tight. Put a reference mark on the nut and fitting body; Tighten nut with wrench a minimum of 3/4 of a turn or until tight. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!