YENRA — HOME WATER FILTER SELECTION AND SERVICE RECORD Companion guide: https://yenra.com/water-filter/ Use this as a planning record, not a certificate of water safety. WATER CONCERN Supply / utility or well: Reason for treatment / named contaminant: Report or test date, laboratory, sampling location, result and units: Advice from utility or health department: Current advisory and instructions, if any: PRODUCT EVIDENCE System manufacturer / exact model: Replacement cartridge exact model: Certifier / standard / specific reduction claim: Certification listing URL and date checked: Performance data sheet URL: Required incoming water conditions: Installation, access, pressure and capacity constraints: COST AND SERVICE Initial system and installation cost: Cartridge cost / quantity included: Rated volume limit / time limit: Expected filtered gallons per day: Other service, cleaning, electricity or reject-water costs: Installation date / cartridge change date: Next replacement trigger (apply the manufacturer's time and volume rules): Preparation, flushing, cleaning and restart instructions reference: Service contact: FICTIONAL EXAMPLE — NOT A PRODUCT SPECIFICATION OR CURRENT PRICE Cartridge: $36; limit: 120 gallons or three months, whichever first. Demand: 2 gallons/day. Volume limit: 120 / 2 = 60 days. 365-day demand: 730 gallons. ceil(730 / 120) = 7 cartridges. Seven cartridges cost $252. If one is included, six more cost $216. Assumes steady demand; real service follows the actual manufacturer's rules. An indicator or improved taste does not certify water safety. Follow current local water-advisory instructions regardless of this record.