Rainbird Large Capacity Disc Filter-130 Micron/120 Mesh NPT Thread, 1.5" 1 1/2 in. Large Capacity Disc Filter - NPT Up to 10X increase in filtration area - 120 mesh/130 micron filtration level Larger filtration area equals less frequent cleaning, which lowers overall maintenance costs Disc Filtration is ideal for dirty water supplies due to increased filtration area. Particularly effective for water with high organic content Ideal for large irrigation zones that require a higher flow rate - Max recommended flow: 88 gpm (20 m3/h) - Filtration area: 83 in2 (535 cm2)