The All Pond Solutions All-in-One CUP-311 System combines everything required to to run a healthy algae-free small to medium sized pond. Designed as a single smart unit with a single power cable it allows for a much easier installation compared to a standard pond set up.The CUP-311 includes a built-in 11w UVC Lamp and filtration system combined with a 2500 litres per hour pump eliminating the need to purchase an external filtration system, which can be difficult to integrate around the landscaping of a small pond.The included filtration media includes a large coarse filter foam that water must pass through first and also three filter media baskets, two are filled with ceramic biological filter media and the last one with K1 filter media. Alternatively you could change the included media inside these baskets for an alternative pond filter media of your choice.This system is also supplied with a high-quality fountain attachment set comprising of three different fountain attachments, ideal for a variety of displays in your pond. The set also includes a splitter, enabling you to divert water to a waterfall, for example, and both the splitter and fountain are flow-rate adjustable. This gives you total control over the strength of your fountain and the volume of water diverted from the unit.