The Blagdon Affinity 5w Upgrade kit is a simple and easy way to install a green water clarifier to your 1400/3000 or 2000 Inpond All in one filter. The UVC kit is designed to easily fit into the Inpond All in One filter that is supplied with the Affinity Octagon or Half Moon Pond Kits. Using a 5w UVC, the clarifier will effectively and quickly clear green algae water from your Affinity pond water, leaving it clear, clean and healthy. Model: 5w Upgrade Kit UVC: 5w Dimensions L x W x H :15.5cm x 6.5 x 6.5cm (Approx) Quartz Height: 7.5cm (Approx) Suitable for: 2000 Inpond (Half Moon) and 1400/3000 (Octagon) Cable: 13m Plug: No Manufacturer Guarantee: 2 Years.