This is a Quality Air Conditioning 90 Degree Female O Ring Type #6 (5/8 " -18) NUT, Crimp On Hose. Fitting designed for #6 REDUCED BARRIER ( 5/16" I. , 37/64" O. This fitting fits a REDUCED BARRIER type hose and is the Beadlock Style, requiring an A/C Hose Crimping Tool. ).
