Savio RF001 Livingponds Filter Top Pad Savio Replacement Top Polishing Mat for SF100 and SF200 #RF001 Savio RF001 Keep your pond water at its cleanest using the Savio Livingponds Filter Top Polishing Mat. Mat fits inside all Savio Livingpond Filters, above the biological media. Features a permeable design, allowing water to pass through but will not clog.