Steel, painted olive drab; 9.000 in. Lg o/al; 9.625 in. H o/a; 8.000 in. W o/a; w/intake 4, 500 in. Od by 3.500 in. Id by 7.500 in. H; located on rear of top end; base mtd w two mtg holes, 0.375 in. Id spaced 7.000 in. C to c; consists of 1 body; 1 valve ubnloader assembly; 1 cover; 6 bolts