Base mounted flat top unit for installation beneath pipe. Galvanised Carbon Steel. Multi-coat finishes available on request. Vertical displacements up to 75mm only. Available in 4 standard modelss: AG680 (working range of 35mm), AG700 (70mm), AG720 (140mm), AG740 (210mm) and 3 compact models: AG690 (38mm), AG693 (75mm), AG696 (150mm)