Enables the ASD pipe to be installed, inspected and maintained outside the Refrigerated Storage facility hence enabling fire contractors to work in ambient conditions most of the time Suited for facilities with and without ceiling cavities Eliminates the need for expensive HDPE (high density polyethylene) pipe inside the Refrigerated Storage facility Eliminates the need for costly access equipment hire for on-going service/ maintenance Eliminates the need for heat tracing Less prone to blockage due to icing Provides a generally more robust ASD installation for these unique environments Provides considerably improved aesthetics Minimises the need for “Back Flush” systems Offers all round cost savings