il return (oil drain) flange (for GT15 through GT35R) with integrated -10 AN/JIC male flare. Fits GT25R, GT28R, GT28RS, GT2871R, GT3071R, GT3076R, GT30/40R, GT35R, GT3082R, GT35/40R units. Low profile 1 piece design for easy install. Made from billet T6061 aircraft aluminum.