Marshall Stamping Extend-O-Post Series JP79 Jack Post, 4 ft 5 in to 7 ft 9 in

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About This Product Extend-O-Posts are ideal for temporarily reinforcing existing floors under heavy load areas, but are not recommended for permanent supports in new construction. There's nothing easier to use for supporting sagging floors, weak beams and warping stairways. With Extend-O-Posts the possibilities are unlimited. Highlights Various load capacities ranging from 8000 to 18,000 lb Flow-coated with red corrosion-resistant paint Packed complete with installation instructions on a color-coded, trilingual carton (4'5-7'9 15GA Jack Post - 6188551 - JP79) Show more