bclark
Senior member
At 300mm x 200mm x 15mm the size is suitable for the slide in filter on 180 degree triples (if you can pull the element's plastic sides apart to fit)..
http://www.ebay.co.uk/itm/RAMAIR-Air-Filter-Foam-Large-Lawnmower-CUT-TO-YOUR-OWN-SIZE-/390438807094?pt=UK_Home_Garden_GardenPowerTools_CA&hash=item5ae7f76636#ht_1608wt_852
http://www.ebay.co.uk/itm/RAMAIR-Air-Filter-Foam-Large-Lawnmower-CUT-TO-YOUR-OWN-SIZE-/390438807094?pt=UK_Home_Garden_GardenPowerTools_CA&hash=item5ae7f76636#ht_1608wt_852