Tier1 P25-20 20 Micron 20 x 2.5 Spun Wound Polypropylene Sediment Purtrex PX20-20 Comparable Replacement Water Filter 6 Pack COMPARABLE FIT: Fits standard 20 x 2.5 inch filter housings. 20 inches (length) x 2 1/2 inches (outside diameter). HIGH QUALITY MATERIALS: Spun Wound Polypropylene. HIGH QUALITY FILTRATION: This Purtrex PX20-20 comparable Tier1 filter is designed to help ensure you serve only high quality water throughout your home. COMPARABLE REPLACEMENT: TIer1 Water filter P20-20 is a cost effective alternative to Pentek P25 100% TIER1 NO WORRIES GUARANTEE: We stand behind the quality of filtration and overall performance of our Tier1 filters! Dirt Sand Sediment Silt Particulates P20-20 93045 PENTEK-P20-20 P2020P2020 PX20-20 93045 1193045 VX25-20 PX20-20 VX25-20 Sediment in drinking water on its own isnt particularly hearmful to humans or pets but it can be an indication of lead or iron contamination which can cause serious health issues. If you suspect there is lead in your pipes get your water tested. Sediment filters help protect other appliances and posessions from the harmful effets of particles which can cause staining and spots on clothes, sinks, toilets and more and wear and deterioration on pipes and appliances If other filtration mediums are already in place in your home, sediment filters as a first layer of defense can increase the lifetime of your other filters by reducing the number of particles and contaminants that would otherwise wear on those other filters.