【Fits Size】The rainwater collection system is fit for 3"x4" rectangular downpipes. Please make sure the size of the downspout before purchasing for a better experience. 【Easy to Install】The rain water catching system is made of heavy-duty material and can be painted, please read the instruction manual or web page illustration carefully when installing. 【Multi Purpose】By installing our rainwater collection system, a large amount of rainwater will be transferred to the collection bucket(not included) through the downpipe for reuse. 【Eco-Friendly】Rainwater harvesting system saves on water bills and helps conserve water. Such as watering flowers, vegetables, car washing, floor cleaning, etc. 【Tips】If you are not satisfied for any reason, we promise 24 hours customer support, please feel free to contact us for any product&order problem.