Universal cantilever arms for pipework support and mounting air conditioning units to walls. Hot dipped galvanised coating allows corrosion resistant and can be used internally or externally. Can be used with channel using channel nuts or anchor bolts when fitting to walls. Pump House Cantilever Arms are ready-made, hot dipped galvanised steel cantilever arms with 14 mm diameter holes offer a quick and easy method of supporting condensing units on external walls. Available in a straight length and webbed version in a variety of lengths.