About Hoka
HoKa supplies duct in materials to match the fittings – PVC, HDPE, PPs and PVDF.
Duct diameters up to 400mm are extruded and seamless. Duct larger than 400mm diameter is fabricated locally from sheet plastic material. Duct to fi tting joins should be plastic welded to ensure a proper air-tight and liquid-tight seal. Joins in PVC can also be made using solvent cement.
