Pond CoversPond covers provide protection for your fish against predators such as herons or cats as well as preventing the build up of fallen leaves and other debris in your pond. The low profile means they don't stand out in your garden, whilst the add on legs allow you to raise them up over any existing plants if you wish. Mainframe pond covers are supplied as complete kits including aluminium tubes, UV stabilised polypropylene molded plastic connectors,