{
  "category": "Pool Filters",
  "vertical": "pool-spa-and-irrigation",
  "source": "https://getclaro.ai/resources/attribute-library/pool-spa-and-irrigation/pool-filters/",
  "status": "editorial-draft",
  "note": "Editorial reference template. Example values show format only and do not describe a real SKU. Not an official ETIM or ECLASS class.",
  "groups": [
    {
      "key": "identity",
      "name": "Identity",
      "check": "Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking."
    },
    {
      "key": "technical",
      "name": "Technical specifications",
      "check": "Store the number and unit separately. Convert only when the source unit and test conditions are known."
    },
    {
      "key": "selection",
      "name": "Selection attributes",
      "check": "Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to."
    },
    {
      "key": "fit",
      "name": "Fit & compatibility",
      "check": "Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so."
    },
    {
      "key": "evidence",
      "name": "Evidence & compliance",
      "check": "Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU."
    }
  ],
  "fields": [
    {
      "key": "manufacturer_part_number_mpn",
      "label": "Manufacturer Part Number (MPN)",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "SF-30-SM"
    },
    {
      "key": "gtin_12_upc",
      "label": "GTIN-12 (UPC)",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "012345303005"
    },
    {
      "key": "filter_type",
      "label": "Filter Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "High-rate sand"
    },
    {
      "key": "effective_filtration_area",
      "label": "Effective Filtration Area",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "ft²",
      "example_format": "4.91"
    },
    {
      "key": "design_flow_rate",
      "label": "Design Flow Rate",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "gpm",
      "example_format": "98"
    },
    {
      "key": "maximum_working_pressure",
      "label": "Maximum Working Pressure",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "psi",
      "example_format": "50"
    },
    {
      "key": "tank_diameter",
      "label": "Tank Diameter",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "in",
      "example_format": "30"
    },
    {
      "key": "port_plumbing_connection_size",
      "label": "Port / Plumbing Connection Size",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": "in",
      "example_format": "2 in"
    },
    {
      "key": "installation_type",
      "label": "Installation Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "In-ground"
    },
    {
      "key": "tank_material",
      "label": "Tank Material",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Fiberglass-reinforced polypropylene"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "United States"
    },
    {
      "key": "valve_mount_position",
      "label": "Valve Mount Position",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Side mount"
    },
    {
      "key": "valve_included",
      "label": "Valve Included",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "No (valve sold separately)"
    },
    {
      "key": "media_charge_required",
      "label": "Media Charge Required",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "lb",
      "example_format": "500 (#20 silica sand)"
    },
    {
      "key": "nominal_micron_rating",
      "label": "Nominal Micron Rating",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "µm",
      "example_format": "20-40"
    },
    {
      "key": "vertical_clearance_for_element_removal",
      "label": "Vertical Clearance for Element Removal",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "56 (cartridge models)"
    },
    {
      "key": "replacement_element_part_number",
      "label": "Replacement Element Part Number",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "identifier",
      "unit": null,
      "example_format": "CE-420 (cartridge models)"
    },
    {
      "key": "nsf_ansi_can_50_rated_filtration_rate",
      "label": "NSF/ANSI/CAN 50 Rated Filtration Rate",
      "group": "evidence",
      "priority": "channel",
      "value_type": "number",
      "unit": "gpm/ft²",
      "example_format": "20"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "Filter Type",
      "variants": [
        "D.E.",
        "DE",
        "Diatomaceous Earth",
        "Diatomite",
        "D.E. Vertical Grid",
        "DE Grid"
      ],
      "normalized": "Diatomaceous earth (D.E.)"
    },
    {
      "attribute": "Effective Filtration Area",
      "variants": [
        "50 sq ft",
        "50 SQ. FT.",
        "50ft2",
        "50 Sq. Ft.",
        "4.6 m²",
        "50"
      ],
      "normalized": "50 ft²"
    },
    {
      "attribute": "Port / Plumbing Connection Size",
      "variants": [
        "2\"",
        "2 in",
        "2in FPT",
        "2.0 inch",
        "50mm",
        "2\" Union"
      ],
      "normalized": "2 in"
    }
  ]
}