AFPRO EAF can supply wire-framed filters in any size the filter media is sewn on a galvanized steel wire frame. The advantage of this is that syntheitic filter material can be far more easily installed into your equipment. You will also find plastic and aluminum filter frames in the AFPRO EAF range. When the filter medium is dirty, you only need to replace the filter medium itself; He frame can be used again and again. This makes the filter frame and changeable filter a good, cheap alternative to fiberglass panel filters especially. AFPRO EAF filter frames are available in various thick-ness and thickness and in the size you require.