AVAILABLE IN 5, 10, 20 INCHES. Sediment filter acts as a sieve to remove these particles. The important thing to keep in mind about sediment filters is that they reduce sediment. They don’t remove chemicals or heavy metals or make the water taste or smell better. In general, sediment filters are rated by a “micron” number. FILTERATION STRENGHT: 1 MICRON, 5 MICRON, 10 MICRON.