Product description Extend the reach of your GARDENA suction unit with this 25mm (1") 4m long suction extension hose. With a handy spiral hose design and a heavy metal connection nut, this extension hose provides better drainage for any 25mm suction unit, pump or filter with 33.3mm (G1") connection thread. Greater reach for better drainage The 4m hose is designed to give you maximum flexibility to enlarge your suction unit as needed. Extra robust suction hose. The spiral hose is vacuum-resistant and will last for years, even in sunlight or when vacuumed in winter. Heavy connection nut. The heavy metal connecting nut provides a secure and leak-free connection to the water pump and suction unit for efficient drainage. Universally compatible. Although we recommend using this extension hose with GARDENA suction units and pumps, it is suitable for all suction units, filters and pumps with a 33.3 mm threaded connection."