{
 "dataset": "Home Water HQ \u2014 home water filtration products",
 "price_checked": "2026-11-03",
 "products": [
  {
   "name": "Aquasana Rhino WH-1000",
   "category": "Whole-house tank systems",
   "price_usd": 1998.0,
   "grade": "A-",
   "yearly_filter_cost": "~$75 (pre/post filters)",
   "buy_url": "https://www.amazon.com/s?k=Aquasana+Rhino+whole+house+water+filter&tag=homegenerat0c-20"
  },
  {
   "name": "SpringWell CF1",
   "category": "Whole-house tank systems",
   "price_usd": null,
   "grade": "C+",
   "yearly_filter_cost": "~$40 (sediment post-filter)",
   "buy_url": "https://www.springwellwater.com"
  },
  {
   "name": "Kind Water Systems E-1000",
   "category": "Whole-house tank systems",
   "price_usd": 976.46,
   "grade": "C+",
   "yearly_filter_cost": "~$120-300 (annual cartridge set)",
   "buy_url": "https://www.amazon.com/s?k=Kind+Water+Systems+E-1000&tag=homegenerat0c-20"
  },
  {
   "name": "iSpring WGB32B-PB",
   "category": "Whole-house cartridge systems & housings",
   "price_usd": 465.22,
   "grade": "C",
   "yearly_filter_cost": "~$110 (cartridge set)",
   "buy_url": "https://www.amazon.com/s?k=iSpring+WGB32B+whole+house+water+filter&tag=homegenerat0c-20"
  },
  {
   "name": "Express Water 3-Stage Whole House (Heavy Metals)",
   "category": "Whole-house cartridge systems & housings",
   "price_usd": 449.99,
   "grade": "C",
   "yearly_filter_cost": null,
   "buy_url": "https://www.amazon.com/s?k=Express+Water+whole+house+water+filter+3+stage&tag=homegenerat0c-20"
  },
  {
   "name": "Whirlpool WHELJ1",
   "category": "Whole-house tank systems",
   "price_usd": null,
   "grade": "B+",
   "yearly_filter_cost": "$0 (no filters to replace for the life of the unit)",
   "buy_url": "https://www.amazon.com/s?k=Whirlpool+WHELJ1+central+water+filtration&tag=homegenerat0c-20"
  },
  {
   "name": "GE GXWH40L",
   "category": "Whole-house cartridge systems & housings",
   "price_usd": 69.85,
   "grade": "C+",
   "yearly_filter_cost": "~$120-260 (cartridge every ~3 months)",
   "buy_url": "https://www.amazon.com/s?k=GE+GXWH40L+whole+house+filter&tag=homegenerat0c-20"
  },
  {
   "name": "Waterdrop G3P800",
   "category": "Under-sink reverse osmosis",
   "price_usd": 849.0,
   "grade": "A",
   "yearly_filter_cost": "~$160 (manufacturer figure)",
   "buy_url": "https://www.amazon.com/s?k=Waterdrop+G3P800+tankless+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Waterdrop G3P600",
   "category": "Under-sink reverse osmosis",
   "price_usd": 439.0,
   "grade": "B+",
   "yearly_filter_cost": "~$145 (manufacturer figure)",
   "buy_url": "https://www.amazon.com/s?k=Waterdrop+G3P600+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Frizzlife PD600-TAM3",
   "category": "Under-sink reverse osmosis",
   "price_usd": 399.99,
   "grade": "C+",
   "yearly_filter_cost": "~$60-80 (per review sites)",
   "buy_url": "https://www.amazon.com/s?k=Frizzlife+PD600+tankless+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "APEC RO-90",
   "category": "Under-sink reverse osmosis",
   "price_usd": 264.99,
   "grade": "A",
   "yearly_filter_cost": "~$60-75",
   "buy_url": "https://www.amazon.com/s?k=APEC+RO-90+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "APEC ROES-50",
   "category": "Under-sink reverse osmosis",
   "price_usd": 230.99,
   "grade": "B",
   "yearly_filter_cost": "~$55",
   "buy_url": "https://www.amazon.com/s?k=APEC+ROES-50+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "iSpring RCC7AK",
   "category": "Under-sink reverse osmosis",
   "price_usd": 239.99,
   "grade": "B",
   "yearly_filter_cost": "~$62 (standard-size filters)",
   "buy_url": "https://www.amazon.com/s?k=iSpring+RCC7AK+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Express Water RO5DX",
   "category": "Under-sink reverse osmosis",
   "price_usd": 167.99,
   "grade": "B-",
   "yearly_filter_cost": "~$37-66",
   "buy_url": "https://www.amazon.com/s?k=Express+Water+RO5DX+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "AquaTru Classic",
   "category": "Countertop filters",
   "price_usd": 475.0,
   "grade": "A",
   "yearly_filter_cost": "~$100 (1-yr combo pack $99.85); ~$130/yr averaged incl. membrane year",
   "buy_url": "https://www.amazon.com/s?k=AquaTru+Classic+countertop+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "AquaTru Carafe",
   "category": "Countertop filters",
   "price_usd": 375.0,
   "grade": "B+",
   "yearly_filter_cost": "~$80-100 (1-yr combo pack)",
   "buy_url": "https://www.amazon.com/s?k=AquaTru+Carafe&tag=homegenerat0c-20"
  },
  {
   "name": "Waterdrop K19 (WD-K19-H/S)",
   "category": "Countertop filters",
   "price_usd": 279.0,
   "grade": "B",
   "yearly_filter_cost": "~$69-75 (single $68.99 cartridge, once a year \u2014 the cheapest countertop RO consumable)",
   "buy_url": "https://www.amazon.com/s?k=Waterdrop+K19+countertop+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Waterdrop C2SL",
   "category": "Countertop filters",
   "price_usd": 159.99,
   "grade": "C",
   "yearly_filter_cost": "~$56 (the lowest in countertop RO)",
   "buy_url": "https://www.amazon.com/s?k=Waterdrop+C2SL+countertop+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Frizzlife WB99-C",
   "category": "Countertop filters",
   "price_usd": 389.99,
   "grade": "B-",
   "yearly_filter_cost": "~$130-146 (the highest in countertop RO \u2014 the alkaline post-filter is replaced quarterly)",
   "buy_url": "https://www.amazon.com/s?k=Frizzlife+WB99+countertop+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Bluevua RO100ROPOT",
   "category": "Countertop filters",
   "price_usd": 389.0,
   "grade": "C+",
   "yearly_filter_cost": "~$90 (1-yr set $89.97); ~$110-120 averaged incl. membrane years",
   "buy_url": "https://www.amazon.com/s?k=Bluevua+RO100ROPOT+countertop+reverse+osmosis&tag=homegenerat0c-20"
  },
  {
   "name": "Big Berkey with Phoenix Elements",
   "category": "Countertop filters",
   "price_usd": 267.0,
   "grade": "B-",
   "yearly_filter_cost": "~$13-50 (multi-year element life \u2014 the anti-subscription product)",
   "buy_url": "https://www.amazon.com/s?k=Big+Berkey+gravity+water+filter&tag=homegenerat0c-20"
  },
  {
   "name": "PUR PLUS Faucet System (PFM400H)",
   "category": "Pitchers & faucet filters",
   "price_usd": 39.99,
   "grade": "A-",
   "yearly_filter_cost": "~$55-79 (cheaper in multipacks)",
   "buy_url": "https://www.amazon.com/s?k=PUR+PLUS+faucet+filtration+PFM400H&tag=homegenerat0c-20"
  },
  {
   "name": "Brita Denali Pitcher with Elite Filter",
   "category": "Pitchers & faucet filters",
   "price_usd": 35.99,
   "grade": "A-",
   "yearly_filter_cost": "~$40 (the cheapest pitcher consumable \u2014 two filters a year)",
   "buy_url": "https://www.amazon.com/s?k=Brita+Denali+pitcher+Elite+filter&tag=homegenerat0c-20"
  },
  {
   "name": "Brita Ultramax Dispenser with Elite Filter",
   "category": "Pitchers & faucet filters",
   "price_usd": 49.99,
   "grade": "B+",
   "yearly_filter_cost": "~$40",
   "buy_url": "https://www.amazon.com/s?k=Brita+Ultramax+dispenser+Elite&tag=homegenerat0c-20"
  },
  {
   "name": "PUR PLUS 11-Cup Pitcher",
   "category": "Pitchers & faucet filters",
   "price_usd": 39.99,
   "grade": "B",
   "yearly_filter_cost": "~$70-108 (six filters a year on schedule)",
   "buy_url": "https://www.amazon.com/s?k=PUR+PLUS+11+cup+pitcher&tag=homegenerat0c-20"
  },
  {
   "name": "Culligan ZeroWater 12-Cup Pitcher",
   "category": "Pitchers & faucet filters",
   "price_usd": 36.99,
   "grade": "B-",
   "yearly_filter_cost": "~$185-240+ (filter life is TDS-dependent: 15-40 gal per filter \u2014 the most expensive water per gallon in this dataset)",
   "buy_url": "https://www.amazon.com/s?k=ZeroWater+12+cup+pitcher&tag=homegenerat0c-20"
  },
  {
   "name": "Clearly Filtered Pitcher",
   "category": "Pitchers & faucet filters",
   "price_usd": 110.0,
   "grade": "C+",
   "yearly_filter_cost": "~$156-260 ($65 per filter)",
   "buy_url": "https://www.amazon.com/s?k=Clearly+Filtered+water+pitcher&tag=homegenerat0c-20"
  },
  {
   "name": "everydrop Refrigerator Filter 4 (EDR4RXD1)",
   "category": "Fridge & shower filters",
   "price_usd": 57.0,
   "grade": "A-",
   "yearly_filter_cost": "~$114-120 (two OEM filters a year)",
   "buy_url": "https://www.amazon.com/s?k=everydrop+Filter+4+EDR4RXD1&tag=homegenerat0c-20"
  },
  {
   "name": "Waterdrop Filter 4 Replacement (EDR4RXD1 fit, 4-pack)",
   "category": "Fridge & shower filters",
   "price_usd": 35.69,
   "grade": "B",
   "yearly_filter_cost": "~$18 (the OEM-vs-compatible gap is ~6x: ~$120/yr vs ~$18/yr)",
   "buy_url": "https://www.amazon.com/s?k=Waterdrop+EDR4RXD1+refrigerator+filter&tag=homegenerat0c-20"
  },
  {
   "name": "Aquasana Shower Filter AQ-4100",
   "category": "Fridge & shower filters",
   "price_usd": 79.99,
   "grade": "B",
   "yearly_filter_cost": "$125.98 (two $62.99 cartridges a year)",
   "buy_url": "https://www.amazon.com/s?k=Aquasana+AQ-4100+shower+filter&tag=homegenerat0c-20"
  }
 ],
 "changelog": [
  {
   "date": "2026-11-03",
   "change": "Initial dataset: 30 products across 5 categories, prices verified 2026-11-03. SpringWell CF1 and Whirlpool WHELJ1 prices not captured first-hand (dynamic/unavailable) and are flagged in their records."
  },
  {
   "date": "2026-11-03",
   "change": "Reorganized categories after reader feedback: whole-house split into Tank Systems vs Cartridge Systems & Housings; the GE GXWH40L is now labeled plainly as a housing only, not a complete system."
  }
 ]
}