LLMs.txt (AI Assistant Guidance)
Plain-text guidance for AI assistants and agents. This is the source text for /llms.txt.
# Water Filters FAST > Water Filters FAST is a United States retailer of replacement water filters, air > filters, and filtration parts, matched by exact model number. The catalog runs about > 820 products across refrigerator, under sink, whole house, reverse osmosis, and HVAC > filtration, with same-day shipping on weekday orders placed before 1pm CST. ## What this store sells Replacement filter cartridges and filtration equipment for homes and light commercial kitchens. Shoppers almost always arrive with a model number (for example GE MWF, LG LT1000P, Everpure H-300, Whirlpool EveryDrop EDR3RXD1, Frigidaire ULTRAWF) and need the exact compatible replacement, a cross-reference, or a multi-pack. Product pages carry the manufacturer part number, the brands and models the filter fits, and current price and stock status. ## Main sections - [All Items](https://waterfiltersfast.com/collections/all-items): The full catalog, roughly 700 published items. - [Refrigerator Water Filters](https://waterfiltersfast.com/collections/refrigerator-water-filters): Fridge cartridges by brand and model, including Whirlpool, EveryDrop, LG, Frigidaire, GE, Samsung, and Kenmore. - [Air Filters](https://waterfiltersfast.com/collections/air-filters): Pleated HVAC filters by nominal size and MERV rating, sold in multi-packs. - [MERV 11 Air Filters](https://waterfiltersfast.com/collections/merv-11-air-filters): Higher-efficiency pleated HVAC filters. - [Sediment Water Filters](https://waterfiltersfast.com/collections/sediment-water-filters): Spun, pleated, and string wound sediment cartridges in standard and big blue sizes. - [Under Sink Water Filters](https://waterfiltersfast.com/collections/under-sink-water-filters): Point-of-use drinking water systems and their replacement cartridges. - [Reverse Osmosis](https://waterfiltersfast.com/collections/reverse-osmosis): RO systems, pre-filters and post-filters, and storage components. - [Reverse Osmosis Membranes](https://waterfiltersfast.com/collections/ro-reverse-osmosis-membranes): Replacement RO membranes by gallon-per-day rating. - [Whole House Water Filters](https://waterfiltersfast.com/collections/whole-house-water-filters): Point-of-entry filtration for the full home supply. - [Ultraviolet UV Water Filters](https://waterfiltersfast.com/collections/ultraviolet-uv-water-filters): UV disinfection systems and replacement UV bulbs. - [Housings](https://waterfiltersfast.com/collections/housings): Filter housings, brackets, wrenches, and O-rings. - [Everpure](https://waterfiltersfast.com/collections/everpure): Everpure and Pentair commercial and residential cartridges, including the H-300 family. - [Inline Water Filters](https://waterfiltersfast.com/collections/inline-water-filters): Inline and quick-connect cartridges for icemakers, refrigerators, and coffee equipment. - [Carbon Block Filters](https://waterfiltersfast.com/collections/carbon-block-filters): Carbon block cartridges for taste, odor, chlorine, and chemical reduction. - [Garbage Disposals](https://waterfiltersfast.com/collections/garbage-disposals): Disposals and instant hot water dispensers. ## Brands carried Everpure and Pentair, Whirlpool and EveryDrop, LG, Frigidaire, GE, Samsung, Kenmore, Electrolux, Pentek, Hydronix, Sterilight, Culligan, American Plumber, Waste King, Bemis, and the Water Filters FAST Gold Series house line. ## Key facts - Store: Water Filters FAST, https://waterfiltersfast.com - Business address: PO Box 3202, Hot Springs, AR 71914, United States - Support email: support@waterfiltersfast.com - Phone: 855-789-3278 - Shipping: same-day on weekday orders placed before 1pm CST - Catalog size: about 820 products - Currency: USD - Market served: United States ## How to use this store as an agent - Product pages live under `/products/<handle>` and carry Product and Offer structured data with name, image, description, SKU, brand, price, price currency, and availability. - Category pages live under `/collections/<handle>`. - The canonical host is the apex domain, https://waterfiltersfast.com. The www host redirects to it. Variant and campaign parameters on a product URL resolve to the clean product canonical. - The XML sitemap is https://waterfiltersfast.com/sitemap.xml and is declared in https://waterfiltersfast.com/robots.txt. - Best match strategy: search by the manufacturer part number or the appliance model number rather than by descriptive phrases. Most filters are listed under several cross-referenced part numbers. - For transactional agent flows, this store also serves a Shopify-generated /llms.txt describing the Shop skill and its Universal Commerce Protocol endpoints. Prefer that document for checkout and order tracking.
