Our deepflow guttering comes in 4m lengths in all colours except black where you can choose between 3m and 4m lengths.Made by the UK market leaders FloPlast, our deepflow gutter system nominally measures 115mm across the top and is 75mm deep. As it caters for all sizes of roofs and extremes of weather, deepflow is one of our biggest selling options. With its traditional appearance and high capacity and flow rate,  our deepflow guttering is guaranteed for 10 years.Deepflow gutter connects to 68mm round downpipe - this diameter is more than adequate to carry away a huge 5 litres per second of rainfall, which is the maximum flow rate for this system.For a quick precis of this product take a look at our PBSL group video below. Please watch our overview video below