Statically conductive ventilation hoses are available in several lengths:

Model 2015 EX - 15' L (4.75 m)
Model 2025 EX - 25' L (7.62 m)
Model 2050 EX - 50' L (15.24 m)

All models are 8" (20 cm) in diameter. They are supplied with a cuff and attachment hardware and lug for grounding.