Tier1 refrigerator filters show up in almost every search for a cheaper fridge cartridge, usually in multi-packs with a price well below the genuine part. Start with the disclosure, because it shapes everything below: Discounted Filter Store does not sell Tier1 products. Tier1 is a third-party compatible brand — it makes cartridges shaped to fit other manufacturers’ refrigerator housings, at a lower price than the genuine part. This page explains, honestly, what Tier1 is, which genuine filters its models copy, the checks to run before buying one, and what the genuine parts cost here. We publish no Tier1 prices, because we do not sell or test those cartridges.
What Tier1 Is
Tier1 is a compatible-filter brand sold mainly through online marketplaces, usually in 1-, 2- and 3-packs — the 3-packs are often sold as “up to 18 months supply”, which is simply three six-month cartridges. Its models carry their own RWF numbers: RWF1011, RWF1052, RWF1022 and the rest are Tier1’s numbering, not the fridge maker’s. Inside, they use an activated carbon block, and their manuals claim NSF/ANSI 42 certification for chlorine reduction — and NSF/ANSI 372 lead-free compliance — for the exact model named, with a six-month service life. That “for the exact model” matters more than the brand name: certification attaches to a specific cartridge, not to a logo, so a Tier1 claim is only as good as the model number it is tied to.
The Tier1 Models Readers Ask About
The table below matches the Tier1 models readers ask us about to the genuine part they copy, and to the genuine part we sell for the same housing. The genuine column is the point of the table: in most cases the genuine cartridge is already close in price, and it is the part the fridge maker tested for that housing.
| Tier1 model | Copies (genuine part) | Genuine part we sell |
|---|---|---|
| RWF1011 | Samsung DA29-00020B / HAF-CIN | Genuine Samsung DA29-00020B from $36.97 |
| RWF1052 | LG LT700P / ADQ36006101 | Genuine LG LT700P from $41.99 |
| RWF1051 | LG LT600P / 5231JA2006A | Genuine LG LT600P (see product page) |
| RWF1022 | Whirlpool 8171413 / 8171414 / EveryDrop EDR8D1 | Not stocked here |
| RWF1110 | Bosch 644845 (UltraClarity) | Genuine Bosch BORPLFTR50 from $42.99 |
| RWF1100 (CS-52) | Bosch 640565 / Whirlpool WHKF-R-PLUS | No matching genuine cartridge in our range |
| Tier1 MWF replacement | GE SmartWater MWFP / MWFA / GWF | Genuine GE MWF from $38.99 |
Two notes on that table. First, the RWF1011 cross-reference is not our claim alone: our own genuine DA29-00020B product page lists RWF1011 among its compatible part numbers. Second, where the genuine column says “not stocked”, that is the honest answer — we would rather say so than point you at a near-match. Our Samsung DA29 water filter guide and LG fridge water filter replacement guide cover the two most-asked housings in full.
What Do Carbon Filters Remove From Water?
The working part of a Tier1 cartridge — and of most fridge cartridges — is activated carbon filtration: carbon processed to be full of microscopic pores, giving a small cartridge an enormous internal surface area. As water is pushed through, chlorine and the organic compounds behind tap water’s treated taste and smell are adsorbed onto that surface, and sediment — rust, sand and scale fines — is strained out. That is what do carbon filters remove from water in practice: taste, odour and visible particles. What they do not do matters just as much: activated carbon does not soften hard water, does not remove dissolved minerals, and does not sterilise. A cartridge certified to NSF/ANSI 53 for a specific model adds health-related contaminant reduction — lead and the rest — but only for that exact model, which is why the model number, not the brand, is the thing to check.
How to Judge a Tier1 Cartridge Before Buying
Three checks decide whether any compatible cartridge is a sound buy, Tier1 included. First, certification tied to the exact model: find which named standards are claimed for that specific RWF number, and confirm the claim in the certifying body’s listings or the maker’s formal documentation — not just in marketplace bullet points. Second, the replacement rhythm and the real yearly cost: every cartridge wears out on a gallons-and-months clock, so work out the per-cartridge price of the multi-pack and compare it with the genuine part over the same 18 months — a 3-pack only saves money if the per-cartridge price genuinely beats the genuine part. Third, availability in two years: a bargain cartridge whose line is discontinued leaves you shopping again, while the genuine part number stays orderable. Our guide to how to spot a fake EveryDrop filter walks through the packaging, pricing and paperwork tells in detail, and the same tells apply to any compatible.
Genuine vs Compatible — The Standing Guidance
A compatible cartridge is a third-party product shaped to fit a housing it was not originally made for. Some compatibles are responsibly made and carry real certification for that specific cartridge; others trade on resemblance. The genuine OEM cartridge is the part the fridge’s manufacturer specified and tested for that housing — fit, seals and certified performance validated as one system. That is what the genuine premium buys, and it is why we sell genuine cartridges: a genuine EveryDrop Filter 1 is $39.99 here with free US shipping on any amount, against $59.99 at the official store or $48 on its subscription. For the full comparison, see our genuine vs compatible fridge filters guide.
The Genuine Parts We Sell for Those Same Housings
Every order ships free anywhere in the US, on any amount, with processing in 1–2 business days, delivery in 3–5 business days via USPS, and free 30-day returns with a prepaid label:
| Genuine cartridge | From | For |
|---|---|---|
| Samsung DA29-00020B (HAF-CIN) | $36.97 | Samsung HAF-CIN housings |
| LG LT700P (ADQ36006101) | $41.99 | LG LT700P housings |
| GE MWF (SmartWater) | $38.99 | GE SmartWater housings |
| GE XWFE | $69.99 | GE XWFE housings |
| EveryDrop Filter 1 (EDR1RXD1) | $39.99 | Whirlpool, Maytag, KitchenAid, Amana, JennAir, Kenmore |
Samsung DA29-00020B LG LT700P GE MWF GE XWFE EveryDrop Filter 1 Genuine LG LT600P Genuine Bosch BORPLFTR50
Frequently Asked Questions
Does Discounted Filter Store sell Tier1 filters? No. We stock genuine EveryDrop, Samsung, LG, GE, Frigidaire and Bosch refrigerator cartridges and no Tier1 products. This page is informational because readers ask about the brand, not because we carry it.
Is Tier1 a genuine filter brand? No. Tier1 makes third-party compatible cartridges shaped to fit other manufacturers’ housings. Genuine means the part the fridge maker specified for that housing — for example, a genuine Samsung DA29-00020B, not a cartridge made to copy it.
Which Tier1 filter replaces my cartridge? Read the OEM part number off your old cartridge, then match it in the table above — RWF1011 for DA29-00020B, RWF1052 for LT700P, and so on. Never order by fridge model alone; lookalike fridges take different cartridges.
Are Tier1 filters certified? Per exact model, according to their manuals: NSF/ANSI 42 for chlorine reduction and NSF/ANSI 372 lead-free compliance are claimed for the models named. Verify the claim for your exact RWF number in the certifying body’s listings before buying.
Is a Tier1 3-pack good value? Only if the per-cartridge price, over the same 18 months, genuinely beats the genuine part for your housing — a genuine DA29-00020B from $36.97 or a genuine LT700P from $41.99, both with free US shipping here. Work out the yearly cost, not the pack price.
What do you sell instead? Genuine OEM refrigerator water filters — EveryDrop Filters 1–5 and Filter A, Samsung, LG, GE, Frigidaire and Bosch cartridges — priced from $34.99 for a genuine Frigidaire EPTWFU01, with free US shipping on any order amount, processing in 1–2 business days, delivery in 3–5 business days via USPS, and free 30-day returns with a prepaid label.