General description The 10 Micrometre String Wound Sediment Water Filter is designed for whole house sediment filtration, effectively removing impurities from your water supply. This pack includes 12 filters, ensuring you have a sufficient supply for your filtration needs. Technical specifications Micron rating: 10 micrometres Material: Cotton thread Size: 25.4 cm Package contents: 12 water filters Measurement allowed error: +/- 1-3 cm