???PROFESSION & DURABILITY???: Made of high-quality corrosion resistant zinc plated hardened steel, solid body for use of a longer life ???EASY TO CONTROL???: Special design of swivel body, preventing hose kinks and increasing mobility, great for air tools to reduce strain on wrist and air hose ???EXCELLENT SEALING???: Pre-coated sealant thread reduces air leaking, no need to wrap with Sealing tape ???CONNECTOR TYPE???: Industrial interchange, also known as M/D type, great for use at home; maximum working pressure is 300 psi ???PRODUCT SIZE???: 1/4 inch NPT male thread ?? 1/4 inch body size for most common uses, interchangeable with most manufacturers