Pondmaster 1000 Garden Pond Filter OnlyThe Pondmaster 1000 Garden Pond Filter was designed to keep maintenance and use simple. This submersible, complete filter box provides highly effective chemical, biological and mechanical filtration to keep your pond water clear, healthy and beautiful. Complete submersible pond filter box Designed for ease of use Dual filter elements for optimal water health and clarity Dual filter elements offer fine particle filtering and chemical filtration of