Netafim Replacement Disc Filter Rings for 2 Inch Filter, 120 Mesh (DFR200120)Replacement Filter Discs for Netafim Manual Disc Filters Your discs will need to be replaced eventually. Stock up on replacement discs for your manual disc filters now. Available Sizes: 3 4 Inch 1 Inch & 1. 5 Inch 1. 5 Inch Long *2 Inch Dual Lite & Dual HP *3 4 1. 5 have 40 mesh, 80 mesh, 120, mesh, and 140 mesh. The 2 inch filter also has the 200 mesh option. The 1 Inch and 1. 5 Inch come with the spine. The 3 4 Inch and 2 Inch do not come with the