Filter FRP 25x6mm Grit Surface, 38x38mm square, 1220x3660mm $368.45 – $524.76 (ex gst) Select options FRP 38x6mm Grit Grey Surface 19x19mm square, 1220x3660mm $632.35 (ex gst) Add to cart R02411 Perforated Metal Sheet, Acoustic: 2.4mm Round, 11% Open Area $57.86 – $94.40 (ex gst) Select options