The high open area minimizes stagnant water to cut sampling time in low-yield wells. The Ultra-Fine filter pack can reduce turbidity by orders of magnitude. This prepack is designed to fit inside Geoprobe® 2.25" Probe Rod. 0.75" ID x 1.4" OD x 0.25" Slot Size (20% open area) SpecificationsOuter Mesh: 65 mesh stainless steel screenSand Pack: Ultra fine (US Silica size 00n)Inner Mesh: 120 mesh stainless steel screenPVC Screen: 0.75" sch40 x 5' x 0.25" slot sizeOverall Dimensions: 0.75" ID x 1.4" OD x 5' Length
