3/4’’ Air Piping Fittings, Brass Ball Valve, 3/4’’× 3/4’’ Piping, Shut-Off Fittings Fit for Shop Garage Compressed Air Line System New Package is up for auction in Industrial & Scientific. The current bid is $1.00, 96% below the $24.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.