PROKLEEN POWERFUL 400W DIRTY/CLEAN PUMP & HEAVY DUTY 20M HOSE: Ideal for any drainage task large all small, floods, swimming pools, hot tubs, ponds, cellars, basements, irrigation and more. Sturdy Heavy Duty layflat hose inner diameter is 25mm (1 inch). Made from quality heavy-duty flexible yellow PVC, reinforced with polyester for maximum strength and flexibility. Working pressure 6 bar - bursting pressure 18 bar, operating temperature -5℃ to 65℃