SEC DUAL HEIGHT 5TH WHEEL & BASE SEC DUAL HEIGHT 5TH WHEEL & BASE Features: Robust design Safe and easy to operate Air operated off Tractor Unit Height adjustable in unhitched state only Designed to AS/NZS 4968.1:2003 Standard Height in lowered position: 165mm Height in raised position: 320mm D Valve: 110kN Imposed load: 15,000kgs Weight: 310kgs Dimensions: 1,200mm x 1,050mm Options Grease Free Top Plate Sliding Base Optional max height Download our 5th Wheel Brochure