PAINT STRAINERS X250Paper paint strainer with nylon mesh, suitable for solvent based paints.190 micron is a fine graded strainer.125micron is an ultra fine graded strainer.250micron is an medium graded strainer.250 strainers per boxUse paint strainers to filter your paint before putting the paint into the spray gun and applying, this will prevent foreign particles entering the spray gun and causing damage and imperfections in the paintwork