The leg hose is only seen on the khaki suits and does not feature on the Ghostbusters 2 Navy Blue suit. The nozzle can be either grey or khaki coloured and can be either rubber or resin, these are widely available through www.gbfans.com. For Ghostbusters, the hose is yellow, for Ghostbusters 2 the hose is clear.
Yellow GB1 Hose
Clear GB2 Hose
GB2 Navy Blue no leg hose