WaterSentinel WSL-1 Refrigerator Replacement Filter: Fits LT-500P LG Filters (3 Pack) Made from Coconut Shell Carbon Made in US WQA Gold Seal Certified to NSF 42 Economical alternative to expensive substitutes Reduces sand, silt, sediment, rust, chlorine taste and odor that may be present in your drinking water Designed to provide up to six months of life or 300 gallons 90 Day warranty against manufacturer defects from date of sale with invoice from WaterSentinel. For Customer Service call 866-218-8473