Vu-Flow NT30 Series 1" Mesh 15, 711, 533, 381, 254, 152, 104, 61 and 30 Micron Replacement VuFlow Spindown Screen Water Filter Elements. Select from various Polyester Filter Screen Mesh / Micron sizes to meet your sediment filtration needs. Vu-Flow NT30SC1000 1000 Mesh = 15 Micron, NT30SC24 24 Mesh = 711 Micron, NT30SC30 30 Mesh = 533 Micron, NT30SC40 40 Mesh = 381 Micron, NT30SC60 60 Mesh = 254 Micron, NT30SC100 100 Mesh = 152 Micron, NT30SC140 140 Mesh = 104 Micron, NT30SC250 250 Mesh = 61 Micron, NT30SC500 500 Mesh = 30 Micron Polyester Replacement Filter Elements for VuFlow sand screen and spin down filters. 1-25 GPM. 5 1/8" L x 1 1/8" OD. Select your screen size. Order extras and save even more.