# Discount Filter Shop

> Online store for genuine refrigerator water and air filters (Whirlpool and everydrop, GE, Samsung, LG, Frigidaire and Electrolux, Bosch, Kenmore, Sub-Zero, PUR, Elkay). Every filter is the genuine part made by the brand on the box, sourced through established US wholesale distributors and sold new in its original packaging. Discount Filter Shop is a trading name of Essential Care Plus LLC, Albuquerque, New Mexico, USA.

## Key facts

- Ships within the United States only. Shipping is free on every order, no minimum.
- Orders placed before 3:00 pm Mountain Time on a business day ship the same day; most arrive within 3 to 5 business days.
- 365-day returns. If a filter does not fit, we refund it and pay the return shipping.
- Contact: support@discountfiltershop.com

## When to use this site

Use Discount Filter Shop when a user in the United States needs:

- The genuine replacement water or air filter for a specific refrigerator, found from the refrigerator model number (for example WRS325SDHZ) or from the part number printed on the old filter (for example EDR1RXD1, DA29-00020B, LT1000P, MWF).
- The current price and stock of a genuine OEM filter, sold new in its original box, with free US shipping, same-day dispatch for orders placed before 3 pm Mountain Time, and 365-day returns.
- To buy one filter, a multi-pack or a 6-month auto-delivery subscription from the brands listed below (Whirlpool and everydrop, GE, Samsung, LG, Frigidaire and Electrolux, Bosch, Kenmore, Sub-Zero, PUR, Elkay).
- Facts about a filter: its NSF/ANSI 42, 53 and 401 certifications, the part numbers it replaces, and the refrigerator models it fits.
- The EPA PFAS measurements of a US public water system, by ZIP code (https://discountfiltershop.com/water-report/).

Do not use it for deliveries outside the United States, for aftermarket or "compatible" filters (every filter sold here is the genuine manufacturer part), or for parts other than refrigerator water and air filters.

## How agents should call this site

- Read any page as Markdown: send `Accept: text/markdown` to its URL, or replace the trailing slash with `.md` (`https://discountfiltershop.com/index.md` is the homepage). Browsers keep getting HTML (`Vary: Accept`).
- Search the catalog: `GET https://discountfiltershop.com/wp-json/wc/store/v1/products?search=<part or model number>` (public JSON, no key), or the compact index `https://discountfiltershop.com/search-data.json` (part numbers, replaced part numbers, refrigerator models and product ids).
- Which filter fits a refrigerator: `https://discountfiltershop.com/refrigerator/<brand>-<model>/` read as Markdown, or the `models` list of search-data.json.
- Product details, cart and checkout: the Store API, described in `https://discountfiltershop.com/openapi.json`; credentials and scopes in `https://discountfiltershop.com/auth.md`.
- Errors are JSON on every API endpoint, and on 404 or 406 responses when the request carries `Accept: application/json`: `code`, `message`, `data.status`, `hint` (how to recover) and `docs`.
- Rate limits: every REST response carries `RateLimit-Policy` and `RateLimit` headers (600 requests per 60 seconds per IP address without credentials, 1200 requests per 60 seconds per account with credentials); a 429 answer comes with `Retry-After`.
- Versions live in the URL path (`/wc/store/v1`, `/wc/v3`, `/dfs/v1`) and never receive breaking changes; an endpoint being retired announces it at least six months ahead with `Deprecation` and `Sunset` headers (policy: https://discountfiltershop.com/developers/#versioning).
- Identify your agent in `User-Agent`, cache search-data.json for an hour, and never create a cart or an order the user did not ask for.

## Find the right filter

- [Filter Finder](https://discountfiltershop.com/find-my-filter/): search by refrigerator model number, filter part number, brand or photo.
- [Filters by refrigerator model](https://discountfiltershop.com/refrigerator/): one page per refrigerator model with the filter it takes.
- [Genuine parts guarantee](https://discountfiltershop.com/genuine-guarantee/): how we source our filters.
- [Shipping policy](https://discountfiltershop.com/payment-and-delivery/) and [Returns policy](https://discountfiltershop.com/refund_returns/)

## Refrigerator water filters

- [Whirlpool everydrop EDR4RXD1 Genuine Refrigerator Water Filter, 3-Pack](https://discountfiltershop.com/product/whirlpool-everydrop-edr4rxd1-genuine-refrigerator-water-filter-3-pack/): genuine Whirlpool EDR4RXD1, replaces UKF8001, 4396395. $81.99, in stock.
- [Whirlpool everydrop EDR4RXD1 Genuine Refrigerator Water Filter, 2-Pack](https://discountfiltershop.com/product/whirlpool-everydrop-edr4rxd1-genuine-refrigerator-water-filter-2-pack/): genuine Whirlpool EDR4RXD1, replaces UKF8001, 4396395. $57.99, in stock.
- [GE RPWFE Genuine Refrigerator Water Filter](https://discountfiltershop.com/product/ge-rpwfe-genuine-refrigerator-water-filter/): genuine GE RPWFE. $54.99, out of stock.
- [Sub-Zero Genuine Annual Filter Bundle: 4204490 Water Filter + 7042798 Air Purification Cartridge](https://discountfiltershop.com/product/sub-zero-genuine-annual-filter-bundle-4204490-7042798/): genuine Sub-Zero 4204490. $119.99, in stock.
- [Sub-Zero 4204490 Genuine Refrigerator Water Filter](https://discountfiltershop.com/product/sub-zero-4204490-genuine-refrigerator-water-filter/): genuine Sub-Zero 4204490, replaces 9030868. $63.99, in stock.
- [PUR RF-9999 Genuine PLUS Faucet Mount Replacement Filter, 3-Pack (RF99993)](https://discountfiltershop.com/product/pur-rf-9999-genuine-plus-faucet-mount-replacement-filter-3-pack/): genuine PUR RF-9999, replaces RF99993. $34.99, in stock.
- [Elkay 51300C Genuine WaterSentry Plus Replacement Filter for Bottle Fillers](https://discountfiltershop.com/product/elkay-51300c-genuine-watersentry-plus-replacement-filter/): genuine Elkay 51300C. $93.99, in stock.
- [GE GXRTDR Genuine In-Line Water Filter for Refrigerators and Icemakers](https://discountfiltershop.com/product/ge-gxrtdr-genuine-in-line-water-filter-refrigerator-icemaker/): genuine GE GXRTDR, replaces GXRTQ, GXRTQR, WR97X0180. $13.99, in stock.
- [GE FQK1K Genuine Replacement Water Filter (Single Stage and In-Line Systems)](https://discountfiltershop.com/product/ge-fqk1k-genuine-replacement-water-filter/): genuine GE FQK1K, replaces GXSTQR. $31.99, in stock.
- [GE FQK2J Genuine Under-Sink Replacement Water Filter Set (Dual Stage)](https://discountfiltershop.com/product/ge-fqk2j-genuine-under-sink-replacement-water-filter-set/): genuine GE FQK2J. $42.99, in stock.
- [Electrolux EPPWFU01 Genuine PureAdvantage Refrigerator Water Filter (PWF-1)](https://discountfiltershop.com/product/electrolux-eppwfu01-genuine-pureadvantage-refrigerator-water-filter/): genuine Electrolux EPPWFU01, replaces PWF-1. $47.99, in stock.
- [Bosch UltraClarity Pro BORPLFTR50 Genuine Refrigerator Water Filter (11032531)](https://discountfiltershop.com/product/bosch-ultraclarity-pro-borplftr50-genuine-refrigerator-water-filter/): genuine Bosch BORPLFTR50, replaces 11032531, BORPLFTR55, 11025825, 17005582, RA450022, REPLFLTR55. $28.99, in stock.
- [Bosch UltraClarity BORPLFTR10 Genuine Refrigerator Water Filter (11034152)](https://discountfiltershop.com/product/bosch-ultraclarity-borplftr10-genuine-refrigerator-water-filter/): genuine Bosch BORPLFTR10, replaces 11034152, BORPLFTR30, 17005585, RA450010, RA450021, REPLFLTR10, REPLFLTR30. $34.99, in stock.
- [Kenmore Elite 9980 Genuine Refrigerator Water Filter (46-9980)](https://discountfiltershop.com/product/kenmore-elite-9980-genuine-refrigerator-water-filter/): genuine Kenmore 9980, replaces 46-9980, ADQ74793502. $39.99, in stock.
- [Kenmore 9690 Genuine Refrigerator Water Filter (46-9690)](https://discountfiltershop.com/product/kenmore-9690-genuine-refrigerator-water-filter/): genuine Kenmore 9690, replaces 46-9690, ADQ36006102, ADQ36006106, ADQ36006114, AGF80300801. $31.99, in stock.
- [Kenmore Elite 9490 Genuine Refrigerator Water Filter (46-9490)](https://discountfiltershop.com/product/kenmore-elite-9490-genuine-refrigerator-water-filter/): genuine Kenmore 9490, replaces 46-9490, ADQ73613402. $37.99, in stock.
- [Kenmore 9083 Genuine Refrigerator Water Filter (46-9083)](https://discountfiltershop.com/product/kenmore-9083-genuine-refrigerator-water-filter/): genuine Kenmore 9083, replaces 46-9083, 9020, 9020B, 9030, 9030B. $42.99, in stock.
- [Kenmore 9081 Genuine Refrigerator Water Filter (46-9081)](https://discountfiltershop.com/product/kenmore-9081-genuine-refrigerator-water-filter/): genuine Kenmore 9081, replaces 46-9081, 9930, W10394044, W10743248. $44.99, in stock.
- [Frigidaire FPPWFU01 Genuine Refrigerator Water Filter (PurePour PWF-1)](https://discountfiltershop.com/product/frigidaire-fppwfu01-genuine-refrigerator-water-filter/): genuine Frigidaire FPPWFU01, replaces PWF-1. $42.99, in stock.
- [GE XWFE Genuine Refrigerator Water Filter](https://discountfiltershop.com/product/ge-xwfe-genuine-refrigerator-water-filter/): genuine GE XWFE, replaces XWF. $43.99, out of stock.
- [LG LT700P Genuine Refrigerator Water Filter (ADQ36006101)](https://discountfiltershop.com/product/lg-lt700p-genuine-refrigerator-water-filter/): genuine LG LT700P, replaces ADQ36006101, ADQ36006111, ADQ36006113, AGF80300701, AGF80300702. $34.99, out of stock.
- [Frigidaire EPTWFU01 Genuine Refrigerator Water Filter (PureSource Ultra II)](https://discountfiltershop.com/product/frigidaire-eptwfu01-genuine-refrigerator-water-filter/): genuine Frigidaire EPTWFU01, replaces 807946701, 5304519147, 5304520985. $41.99, out of stock.
- [Samsung DA97-17376B Genuine Refrigerator Water Filter (HAF-QIN/EXP)](https://discountfiltershop.com/product/samsung-da97-17376b-genuine-refrigerator-water-filter/): genuine Samsung DA97-17376B, replaces HAF-QIN, HAF-QIN/EXP, HAF-QINS. $29.99, in stock.
- [Samsung DA29-00020B Genuine Refrigerator Water Filter (HAF-CIN/EXP)](https://discountfiltershop.com/product/samsung-da29-00020b-genuine-refrigerator-water-filter/): genuine Samsung DA29-00020B, replaces HAF-CIN, HAF-CIN/EXP. $33.99, in stock.
- [Frigidaire WF3CB Genuine Refrigerator Water Filter (PureSource 3)](https://discountfiltershop.com/product/frigidaire-wf3cb-genuine-refrigerator-water-filter/): genuine Frigidaire WF3CB, replaces 242069601, 242086203, 242294501. $36.99, in stock.
- [Frigidaire ULTRAWF Genuine Refrigerator Water Filter (PureSource Ultra)](https://discountfiltershop.com/product/frigidaire-ultrawf-genuine-refrigerator-water-filter/): genuine Frigidaire ULTRAWF, replaces 242017800, 242017801, 241791601, A0094E28261, 46-9999. $42.99, in stock.
- [GE MSWF Genuine Refrigerator Water Filter (SmartWater)](https://discountfiltershop.com/product/ge-mswf-genuine-refrigerator-water-filter/): genuine GE MSWF, replaces WR02X12345, WR02X12801, WR02X13618. $26.99, in stock.
- [GE GSWF Genuine Refrigerator Water Filter (SmartWater Slim)](https://discountfiltershop.com/product/ge-gswf-genuine-refrigerator-water-filter/): genuine GE GSWF, replaces WR17X11608. $26.99, in stock.
- [GE MWF Genuine Refrigerator Water Filter (SmartWater)](https://discountfiltershop.com/product/ge-mwf-genuine-refrigerator-water-filter/): genuine GE MWF, replaces MWFP, GWF, GWFA, GWF01, GWF06, GWFS, HWF, HXRT, FXRT, MWFCH, WR02X11020, WR02X11287, WR02X11290, WR02M3552, WR97X10006, WR97X10018, 46-9905. $43.99, in stock.
- [LG LT1000P Genuine Refrigerator Water Filter (ADQ74793501)](https://discountfiltershop.com/product/lg-lt1000p-genuine-refrigerator-water-filter/): genuine LG LT1000P, replaces ADQ74793501, ADQ74793507, AGF80300703, AGF80300704, AGF80300705. $46.99, in stock.
- [LG LT800P Genuine Refrigerator Water Filter (ADQ73613401)](https://discountfiltershop.com/product/lg-lt800p-genuine-refrigerator-water-filter/): genuine LG LT800P, replaces ADQ73613401, ADQ73613408. $38.99, in stock.
- [Whirlpool everydrop EDRARXD1 Genuine Refrigerator Water Filter (Filter A)](https://discountfiltershop.com/product/whirlpool-everydrop-edrarxd1-genuine-refrigerator-water-filter/): genuine Whirlpool EDRARXD1, replaces W11519209, W11536439. $48.99, in stock.
- [Whirlpool everydrop EDR5RXD1 Genuine Refrigerator Water Filter (Filter 5)](https://discountfiltershop.com/product/whirlpool-everydrop-edr5rxd1-genuine-refrigerator-water-filter/): genuine Whirlpool EDR5RXD1, replaces 4396508, 4396509, 4396510, 4392857, 4392922, 4396547, 4396548, 4396163, 4396164, 46-9010, 46-9902, 9085, 46-9085, KEDR5RXD1. $41.99, in stock.
- [Whirlpool everydrop EDR4RXD1 Genuine Refrigerator Water Filter (Filter 4)](https://discountfiltershop.com/product/whirlpool-everydrop-edr4rxd1-genuine-refrigerator-water-filter/): genuine Whirlpool EDR4RXD1, replaces UKF8001, 4396395. $33.99, in stock.
- [Whirlpool everydrop EDR3RXD1 Genuine Refrigerator Water Filter (Filter 3)](https://discountfiltershop.com/product/whirlpool-everydrop-edr3rxd1-genuine-refrigerator-water-filter/): genuine Whirlpool EDR3RXD1, replaces 4396841, 4396710, 4396711, 4396842, 8212650, W10121145, W10121146, W10565739A, W10754687, W10776411, 46-9083, 46-9020, 46-9030, 9020B, 9030B, 9920, 9953. $43.99, in stock.
- [Kenmore 9085 Genuine Refrigerator Water Filter (46-9085)](https://discountfiltershop.com/product/kenmore-9085-genuine-refrigerator-water-filter/): genuine Kenmore 9085. $41.99, in stock.
- [Kenmore 9082 Genuine Refrigerator Water Filter (46-9082)](https://discountfiltershop.com/product/kenmore-9082-genuine-refrigerator-water-filter/): genuine Kenmore 9082. $45.99, in stock.
- [Whirlpool everydrop EDR6D1 Genuine Refrigerator Water Filter (Filter 6)](https://discountfiltershop.com/product/whirlpool-everydrop-edr6d1-genuine-refrigerator-water-filter/): genuine Whirlpool EDR6D1, replaces 4396701. $27.99, in stock.
- [GE XWF Genuine Refrigerator Water Filter](https://discountfiltershop.com/product/ge-xwf-genuine-refrigerator-water-filter/): genuine GE XWF. $22.99, out of stock.
- [Whirlpool everydrop EDR2RXD1 Genuine Refrigerator Water Filter (Filter 2)](https://discountfiltershop.com/product/whirlpool-everydrop-edr2rxd1-genuine-refrigerator-water-filter/): genuine Whirlpool EDR2RXD1, replaces W10413645A, W10413645, W10238154, W10609378, W10680605, 9082, 46-9082. $22.99, in stock.
- [Whirlpool everydrop EDR1RXD1 Genuine Refrigerator Water Filter (Filter 1)](https://discountfiltershop.com/product/whirlpool-everydrop-edr1rxd1-genuine-refrigerator-water-filter/): genuine Whirlpool EDR1RXD1, replaces W10295370A, W10295370, 9081, 46-9081, 9930, 46-9930, 9900, 9981. $31.99, in stock.
- [Sub-Zero 7042803 Genuine Ice Maker Water Filter (replaces 7012333)](https://discountfiltershop.com/product/sub-zero-7042803-genuine-ice-maker-water-filter/): genuine Sub-Zero 7042803, replaces 7012333. $59.99, out of stock.
- [Kenmore 9990 Genuine Refrigerator Water Filter (46-9990)](https://discountfiltershop.com/product/kenmore-9990-genuine-refrigerator-water-filter/): genuine Kenmore 9990, replaces 46-9990. $34.99, in stock.
- [Kenmore 9084 Genuine Refrigerator Water Filter (46-9084)](https://discountfiltershop.com/product/kenmore-9084-genuine-refrigerator-water-filter/): genuine Kenmore 9084, replaces 46-9084, 9005, 9006. $40.99, in stock.
- [Samsung DA29-00003G Genuine Refrigerator Water Filter (HAFCU1)](https://discountfiltershop.com/product/samsung-da29-00003g-genuine-refrigerator-water-filter/): genuine Samsung DA29-00003G, replaces HAFCU1, HAFIN2, DA29-00003B. $43.99, in stock.
- [everydrop F2WC9I1 Genuine Ice Machine Water Filter (ICE2)](https://discountfiltershop.com/product/everydrop-f2wc9i1-ice2-ice-machine-water-filter/): genuine everydrop F2WC9I1, replaces ICE2. $39.99, in stock.

## Refrigerator air filters

- [Sub-Zero 7042798 Genuine Air Purification Cartridge](https://discountfiltershop.com/product/sub-zero-7042798-genuine-air-purification-cartridge/): genuine Sub-Zero 7042798, replaces 7007067. $59.99, in stock.
- [Frigidaire PAULTRAII2PK Genuine PureAir Ultra II Refrigerator Air Filter, 2-Pack](https://discountfiltershop.com/product/frigidaire-paultraii2pk-genuine-pureair-ultra-ii-refrigerator-air-filter-2-pack/): genuine Frigidaire PAULTRAII2PK, replaces PAULTRA2, PureAir Ultra II. $23.99, in stock.
- [Frigidaire PAULTRA2 Genuine PureAir Ultra II Refrigerator Air Filter](https://discountfiltershop.com/product/frigidaire-paultra2-genuine-pureair-ultra-ii-refrigerator-air-filter/): genuine Frigidaire PAULTRA2, replaces PureAir Ultra II. $11.99, in stock.
- [Frigidaire FRPFUAF1 Genuine PureFresh Universal Refrigerator Air Filter](https://discountfiltershop.com/product/frigidaire-frpfuaf1-purefresh-universal-refrigerator-air-filter/): genuine Frigidaire FRPFUAF1. $9.99, in stock.
- [Frigidaire FRGPAAF2 Genuine PureAir Refrigerator Air Filter](https://discountfiltershop.com/product/frigidaire-frgpaaf2-genuine-pureair-refrigerator-air-filter/): genuine Frigidaire FRGPAAF2. $14.99, in stock.
- [Frigidaire FRGPAAF1 Genuine PureAir Refrigerator Air Filter (AF-1)](https://discountfiltershop.com/product/frigidaire-frgpaaf1-pureair-refrigerator-air-filter-af-1/): genuine Frigidaire FRGPAAF1. $11.30, in stock.

## Guides

- [OEM vs. Compatible Refrigerator Filters: How to Read the Label Before You Buy](https://discountfiltershop.com/guides/oem-vs-compatible-refrigerator-filters-read-the-label/)
- [Sub-Zero 7042803 Ice Maker Filter: Replacement Guide](https://discountfiltershop.com/guides/sub-zero-7042803-ice-maker-filter-guide/)
- [How to Recycle Used Refrigerator Filters](https://discountfiltershop.com/guides/recycle-dispose-used-refrigerator-water-filters/)
- [Does a Refrigerator Filter Soften Hard Water? (No: Here’s What It Does and Doesn’t Remove)](https://discountfiltershop.com/guides/refrigerator-filter-hard-water-softening/)
- [Why Does My Ice Taste Bad or Look Cloudy? The Refrigerator Filter Connection](https://discountfiltershop.com/guides/ice-tastes-bad-cloudy-refrigerator-filter/)
- [Frigidaire EPTWFU01 vs FPPWFU01 (PurePour PWF-1): Don’t Confuse These Two](https://discountfiltershop.com/guides/frigidaire-eptwfu01-vs-fppwfu01-purepour/)
- [Why Does My Fridge Water Taste Bad Even With a New Filter? The 6-Cause Diagnosis](https://discountfiltershop.com/guides/fridge-water-tastes-bad-new-filter-diagnosis/)
- [Can You Run a Refrigerator Without a Water Filter? (Bypass Plugs Explained)](https://discountfiltershop.com/guides/run-refrigerator-without-water-filter-bypass/)
- [Refrigerator Filter Subscription: How It Works](https://discountfiltershop.com/guides/refrigerator-filter-subscription-auto-delivery-explained/)
- [How to Reset the Filter Light on Any Refrigerator (LG, Samsung, GE, Whirlpool, Frigidaire, Kenmore)](https://discountfiltershop.com/guides/reset-filter-light-any-refrigerator/)
- [Frigidaire EPTWFU01 vs ULTRAWF: Which One Is Yours?](https://discountfiltershop.com/guides/frigidaire-eptwfu01-vs-ultrawf/)
- [Do You Need to Flush a New Refrigerator Filter? Yes: Here’s Exactly How](https://discountfiltershop.com/guides/flush-new-refrigerator-filter-how-many-gallons/)
- [everydrop Filter A vs Filter 1: What’s Different?](https://discountfiltershop.com/guides/everydrop-filter-a-vs-filter-1/)
- [GE XWF vs XWFE: The RFID Chip Difference (And Which One Your Fridge Needs)](https://discountfiltershop.com/guides/ge-xwf-vs-xwfe-rfid-difference/)
- [UKF8001, 4396841, 4396710, W10295370A: Whirlpool Legacy Part Numbers Decoded](https://discountfiltershop.com/guides/whirlpool-legacy-part-numbers-decoded/)
- [Kenmore Filter Number Decoder: 9081, 9082, 9083, 9085, 9490, 9690, 9980, 9999 Explained](https://discountfiltershop.com/guides/kenmore-filter-number-decoder-cross-reference/)
- [Refrigerator water filter vs Brita pitcher: which is better for your home?](https://discountfiltershop.com/guides/refrigerator-water-filter-vs-brita-pitcher-which-is-better-for-your-home/)
- [How to find your refrigerator water filter model number (any brand)](https://discountfiltershop.com/guides/how-to-find-your-refrigerator-water-filter-model-number-any-brand/)
- [Samsung Refrigerator Water Filter Guide: DA29-00020B & RF28 Models](https://discountfiltershop.com/guides/samsung-refrigerator-water-filter/)
- [Do Refrigerator Water Filters Expire? How Long They Last](https://discountfiltershop.com/guides/do-refrigerator-water-filters-expire/)
- [LG Refrigerator Water Filter Guide: LT700P, LT800P & LT1000P](https://discountfiltershop.com/guides/lg-refrigerator-water-filter-guide/)
- [8 Signs It’s Time to Change Your Refrigerator Water Filter](https://discountfiltershop.com/guides/signs-change-water-filter/)
- [Do refrigerator water filters reduce lead? What the certifications show](https://discountfiltershop.com/guides/do-refrigerator-water-filters-remove-lead-what-the-science-says/)
- [LG LT700P vs LT800P vs LT1000P: Which LG Refrigerator Filter Do You Need?](https://discountfiltershop.com/guides/lg-lt700p-vs-lt800p-vs-lt1000p-comparison/)
- [PFAS in US Tap Water: 2026 Guide to Filters Certified to Reduce PFOA and PFOS](https://discountfiltershop.com/guides/pfas-tap-water-best-certified-filters-2026/)
- [NSF 42 vs NSF 53 vs NSF 401: what do refrigerator filter certifications actually mean?](https://discountfiltershop.com/guides/nsf-42-vs-nsf-53-vs-nsf-401-what-do-refrigerator-filter-certifications-actually-mean/)
- [How to Replace a Kenmore Refrigerator Water Filter](https://discountfiltershop.com/guides/how-to-replace-a-kenmore-refrigerator-water-filter-9081-9083-9690-9980/)
- [How to Replace a Frigidaire Refrigerator Water Filter](https://discountfiltershop.com/guides/how-to-replace-a-frigidaire-refrigerator-water-filter-all-puresource-series/)
- [How to Replace a GE Refrigerator Water Filter](https://discountfiltershop.com/guides/how-to-replace-a-ge-refrigerator-water-filter-mwf-xwfe-gswf-mswf/)
- [How to Replace a Samsung Refrigerator Water Filter](https://discountfiltershop.com/guides/how-to-replace-a-samsung-refrigerator-water-filter-haf-cin-haf-qin-da29-series/)
- [How to replace an LG refrigerator water filter (LT700P, LT800P, LT1000P)](https://discountfiltershop.com/guides/how-to-replace-an-lg-refrigerator-water-filter-lt500p-lt700p-lt800p-lt1000p/)
- [Frigidaire ULTRAWF vs WF3CB vs WF2CB: which PureSource filter do you need?](https://discountfiltershop.com/guides/frigidaire-ultrawf-vs-wf3cb-vs-wf2cb-which-puresource-filter-do-you-need/)
- [Samsung DA29-00020B vs HAF-QIN vs DA29-00003G: which Samsung filter is yours?](https://discountfiltershop.com/guides/samsung-da29-00020b-vs-haf-qin-vs-da29-00003g-which-samsung-filter-is-yours/)
- [everydrop filter 1 vs 3 vs 4 vs 5: how to find the right one for your fridge](https://discountfiltershop.com/guides/everydrop-filter-1-vs-3-vs-4-vs-5-how-to-find-the-right-one-for-your-fridge/)
- [GE MWF vs XWFE vs MSWF vs GSWF: the complete GE refrigerator filter guide](https://discountfiltershop.com/guides/ge-mwf-vs-xwfe-vs-mswf-vs-gswf-the-complete-ge-refrigerator-filter-guide/)

## Developer resources

- [Discount Filter Shop developer resources](https://discountfiltershop.com/developers/): API overview, quick start, authentication and the Markdown-for-agents conventions used on this site.
- [OpenAPI specification](https://discountfiltershop.com/openapi.json): OpenAPI 3.1 description of the public Store API (catalog, cart, checkout), the filter identification endpoint and the WooCommerce REST API, with security schemes and permission scopes.
- [API catalog](https://discountfiltershop.com/.well-known/api-catalog): RFC 9727 linkset of every API on this host.
- [AI catalog](https://discountfiltershop.com/.well-known/ai-catalog.json): AI Catalog 1.0 document (also served at https://discountfiltershop.com/.well-known/ard.json) whose ARD entries describe the MCP server card, the OpenAPI description, the API catalog and this file, each with representative queries.
- [Authentication guide](https://discountfiltershop.com/auth.md): how agents obtain least-privilege credentials (public Store API, scoped WooCommerce API keys, OAuth 2.1 for the MCP server).
- [Store API](https://discountfiltershop.com/wp-json/wc/store/v1/products): public JSON catalog, no key needed.
- [MCP server card](https://discountfiltershop.com/.well-known/mcp/server-card.json): Model Context Protocol server for site administration by authorized staff (OAuth 2.1 with PKCE): Streamable HTTP at https://discountfiltershop.com/wp-json/stifli-flex-mcp/v1/messages, legacy SSE at https://discountfiltershop.com/wp-json/stifli-flex-mcp/v1/sse; unauthenticated requests get 401 with a WWW-Authenticate pointer to the RFC 9728 resource metadata.
- [Markdown version of the homepage](https://discountfiltershop.com/index.md): every page is also served as Markdown with `Accept: text/markdown`, or by replacing the trailing slash with `.md`.