FilterFoundUS · public model data

SOURCE-BACKED EQUIPMENT IDENTITY

Find the equipment model before choosing a replacement filter

Search 6,263 EPA-published equipment model records across 8 appliance categories. Copy the exact model number, then use the manufacturer's replacement-parts documentation to identify its filters.

Important distinction: this is an equipment identity lookup, not a database of verified replacement filters. ENERGY STAR product data concerns energy efficiency; it does not establish that any particular cartridge, filter, washer component or membrane fits a listed model. EPA does not endorse FilterFound.

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Partial matches are useful for finding identifiers, but never prove a replacement filter fits. Search results are deliberately excluded from Google indexing; only this introductory page has a canonical URL.

Model categories from an open government source

Water heaters — Matching equipment identities

Showing up to 48 matching model records. Refine brand or model to narrow the list.

  • 1HVAC — ACIQ-50G-HP-WH

    Appliance family
    Water heaters
    EPA model ID
    3626848
    Published model name
    Heat pump water heater
    Filter replacement compatibility
    Not established
    EPA dataset and sourceNext: identify the filter

  • 1HVAC — ACIQ-80G-HP-WH

    Appliance family
    Water heaters
    EPA model ID
    3626849
    Published model name
    Heat pump water heater
    Filter replacement compatibility
    Not established
    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ACT-199O-N 1**

    Appliance family
    Water heaters
    EPA model ID
    2408682
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ACT-199O-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408678
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ACTH-199M-(N,P) 1**

    Appliance family
    Water heaters
    EPA model ID
    4670329
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATHR-160M 1**

    Appliance family
    Water heaters
    EPA model ID
    2862492
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATHR-160X3 1**

    Appliance family
    Water heaters
    EPA model ID
    2862491
    Published model name
    ATHR-160M 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATHR-180M 1**

    Appliance family
    Water heaters
    EPA model ID
    2866539
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATHR-180X3 1**

    Appliance family
    Water heaters
    EPA model ID
    2866538
    Published model name
    ATHR-180M 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATHR-199M 1**

    Appliance family
    Water heaters
    EPA model ID
    2870544
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATHR-199X3 1**

    Appliance family
    Water heaters
    EPA model ID
    2862504
    Published model name
    ATHR-199M 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATI-340H 1**

    Appliance family
    Water heaters
    EPA model ID
    2408797
    Published model name
    T-H3S-DV-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATI-340H 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408796
    Published model name
    T-H3S-DV-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATI-340HX3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    2408752
    Published model name
    T-H3S-DV-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATI-340HX3-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408751
    Published model name
    T-H3S-DV-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-140M-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4670344
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-140X3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4670343
    Published model name
    ATM-140M-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-160M-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4015940
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-160M-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    4670325
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-160X3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4015961
    Published model name
    ATM-160M-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-160X3-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    4670328
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-180M-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4015939
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-180M-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    4617138
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-180X3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4015951
    Published model name
    ATM-180M-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-180X3-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    4617144
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-199M-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4015941
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-199M-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    4617137
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-199X3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    4015943
    Published model name
    ATM-199M-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATM-199X3-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    4617143
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-240H 1**

    Appliance family
    Water heaters
    EPA model ID
    2408815
    Published model name
    T-H3J-OS-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-240H 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408814
    Published model name
    T-H3J-OS-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-240HX3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    2408741
    Published model name
    T-H3J-OS-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-240HX3-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408740
    Published model name
    T-H3J-OS-N
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-540H 1**

    Appliance family
    Water heaters
    EPA model ID
    2408684
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-540H 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408680
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-540HX3-N 1**

    Appliance family
    Water heaters
    EPA model ID
    2408781
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-540HX3-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408780
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-540P-N 1**

    Appliance family
    Water heaters
    EPA model ID
    2408683
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — ATO-540P-P 1*1

    Appliance family
    Water heaters
    EPA model ID
    2408679
    Published model name
    T-H3-OS-N 1**
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — CAHP-40 2**

    Appliance family
    Water heaters
    EPA model ID
    4689628
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — CAHP-50 2**

    Appliance family
    Water heaters
    EPA model ID
    4689619
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — CAHP-66 2**

    Appliance family
    Water heaters
    EPA model ID
    4689618
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — CAHP-80 2**

    Appliance family
    Water heaters
    EPA model ID
    4689617
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — FPTU-50 1**

    Appliance family
    Water heaters
    EPA model ID
    2408907
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — FPTU-66 1**

    Appliance family
    Water heaters
    EPA model ID
    2408900
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — FPTU-80 1**

    Appliance family
    Water heaters
    EPA model ID
    2408886
    Published model name
    Heat Pump
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — GC6-PS4050*V 1**

    Appliance family
    Water heaters
    EPA model ID
    2408767
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

  • A. O. Smith — GC6-PS5065*V 1**

    Appliance family
    Water heaters
    EPA model ID
    2408762
    Filter replacement compatibility
    Not established

    The source contains a wildcard model pattern. This is not a list of verified individual variants.

    EPA dataset and sourceNext: identify the filter

What a model record does—and does not—tell you

It tells you: a brand, a model number, an official EPA dataset and an EPA source identifier. That gives you a traceable starting point when you are looking at an old label or an unfamiliar product family.

It does not tell you: which air, water, intake, lint, sediment, membrane or cleaning filter fits the model, whether the component is washable, whether the appliance has a user-serviceable filter or what any replacement costs. Those are separate manufacturer claims that require product-specific evidence.

For filtration questions, choose a category guide. Our source-backed HVAC compatibility catalog remains a distinct, separately verified system.

Data: U.S. Environmental Protection Agency, ENERGY STAR public product datasets. EPA developer guide · Data license. ENERGY STAR is a registered EPA trademark; no EPA endorsement or logo license is implied. Model records can include wildcard families, and data may change over time.