●【Material & Construction】High quality Aluminum and Brass and nitrile.Seveen piece construction-nut,sleeve and bdy with attached. ●【Installation】Easy to install no flaring tool required.Double O-ring compression style fitting,the tubing also can be removed if needed. ●【Temperature Range】-40℉ to 140℉,Ratings ASTM F1282 and ASTM F1974.Working Pressure: 200 psi Maximum working pressure. ●【Sealing】Double O-ring ensure 100% sealing in high working presure. ●【Application】Used with Redrock Performance 3/4 Inch tubing system.