Suntec model j single-stage fuel unit j4nb-a1000g, rh-lh, 1725 rpm, 26 gph, 40 psi features: single-pipe gravity feed installations two-pipe lift installations to 12in hg. Vacuum lift or gravity feed applications with 10 psi maximum inlet/return pressure capacities to 60 gph six pressure options, 10 to 300 psi for no. 4 and lighter fuel oils gasoline and jp fuels,special hub and flange mounting in any position. . click for installion details click for brochure