Adjustable 4x4 Screw Jacks 2-Pack for Leveling, 14.5"-18.5" Height, Heavy Duty,

4x4 Screw Jack - Versatile Support Solution. Versatile Repair & Support: This 4x4 screw jack is ideal for both temporary and permanent support across a variety of projects, including Fits Standard / Nominal / Dressed 4x4 square lumber (3.5" Sq.).

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