The bioforce filter range has been improved they are compact and highly effective pond filters which make cleaning extremely simple bioforce filters now have higher pond size ratings and come with kaldnes k3 biomedia and reduced cleaningr the bioforce 9000 has an 24w uvcr all bioforce sizes have been with the following features for high performance and ease of user r mechanical filtrationr more efficient and less cleaningr through flow coarse foams reduce filter cleaning frequencyr profil