Drum pump, air operated, 1:1 oil ratio, max. flow GPM 10, max. GPM for oil 10, outlet size 3/4 in. FNPT, body material aluminum, steel, suction tube length (in.) 37, max. head (ft.) 34, max. pressure (PSI) 150, max. temp. (F) 122, Ratio 1:1, delivers 100