Tier1 DGD-7525-20 20 Micron 20 x 4.5 Spun Wound Polypropylene Sediment Pentek Replacement Water Filter 6 Pack REPLACEMENT FIT: Fits most standard housings that accept 20-inch x 4.5-inch water filter cartridges. 20 inches (length) x 4 1/2 inches (outside diameter) QUALITY MATERIALS: Spun Wound Polypropylene HIGH QUALITY FILTRATION: Designed to help ensure you serve only high quality water throughout your home COMPARABLE REPLACEMENT: Cost effective alternative to Pentek DGD-7525-20. 100% TIER1 NO WORRIES GUARANTEE: We stand behind the quality of filtration and overall performance of our Tier1 filters! Dirt Sediment Particulates COMP-P20-20BB P20-20BB PENTEK-DGD-7525-20 155356-43 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.