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Hidden air slots giving ample ventilation
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Extended ventilation on 35SA-7 and 35SA-10
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Insulated top cover to prevent condensation
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2 types of backboards available: Water resistant chipboard and water resistant chipboard clad with aluminium
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Root for in-ground installation included on all models
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Unique for installation of CATV or Telco equipment
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Brass cylinder lock
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Triangular lock on 20SA-1