The Sumner Lo Heavy Duty Jack with V‑Head (Model 780385, ST‑901) is a low‑profile pipe stand adjustable from 21″ to 36″ (51 cm–89 cm) and supports pipe sizes from ⅛″ to 36″. Built with 1″ square‑tube steel and a rib‑reinforced V‑head, it withstands loads up to 2,500 lb (1,135 kg). Features quick‑action lockwasher, patented Fall Guard™ safety zone, strut tension plate, set‑screw transport lock, Acme 1½″ fine adjustment, and large handle.