Non-positional mounting, no adapter Valve required, a sealing force of over 180 inch lbs., torque tested with 450 lbs. Pressure tested at 250f, patented Valve gasket provides 50 times more sealing area than competitive 'O' ring types, SUPCO BPV-31 bullet 3-in-1 line Tap Piercing Valve, 500 psi pressure, 1/4", 5/16", and 3/8 inch OD size, Pack of 12. Made in United States. Manufactured by sealed unit parts Co., Inc.