LG LT800P Refrigerator Water Filter (ADQ73613401)
OEM part number(s):
Made by LG. Replacement interval: 6 months.
Certified: Yes — NSF/ANSI 42, NSF/ANSI 53 by NSF International, verified against the certifier's listings on 2026-11-11. Certifier listing (listed as: ADQ73613401-S (system) — LT800P / LT800PC / LT800PCS)
Prices checked 2026-11-11: genuine from $54.95 + shipping at FiltersFast · aftermarket from $16.47 + shipping at The Home Depot. Every price in the table below carries its store and checked date.
Amazon is a buy link, not a price claim: Amazon blocks automated price reads, so its price is never quoted here.
Exact fit — all 45 verified models
Harvested from published manufacturer and retailer fit lists (sources at the bottom of this page). If your exact model is not listed, do not assume fit — check the number on your current part.
LG (45)
FiltersFast published compatible-models list as crawled (complete in the returned page) merged with LG Australia's manufacturer fit list (GF- models). Note the LT800P list is much narrower than LT700P's — the two cartridges are not interchangeable despite similar shape.
Certification
Certified: Yes — NSF/ANSI 42, NSF/ANSI 53 by NSF International, verified against the certifier's listings on 2026-11-11. Certifier listing (listed as: ADQ73613401-S (system) — LT800P / LT800PC / LT800PCS)
LG product pages state LT800P filtration certification per NSF standards NSF42 and NSF53, with a link to the NSF certified listings at info.nsf.org; FiltersFast OEM specification lists NSF 42, 53. Fridge.com's comparison table claims 42/53/401 for LT800P — that conflicts with LG's own statement (401 is LT1000P-only) and was rejected; this is the documented wrong/incumbent-data pattern the brief warned about. MERGE LISTING CHECK 2026-11-11: NSF's own directory (LG Electronics company listing, info.nsf.org) shows system ADQ73613401-S with replacement element ADQ73613401 covering LT800P/LT800PC/LT800PCS under NSF/ANSI 42 (chlorine, particulate Class I, taste & odor; 200 gal, 0.5 gpm) and NSF/ANSI 53 (2,4-D, asbestos, atrazine, benzene, carbofuran, cyst, lead, lindane, mercury, p-dichlorobenzene, toxaphene). Certified status rests on that directory entry.
Aftermarket equivalents
| Brand | Part number | Note |
|---|---|---|
| FiltersFast | PH21430 | FiltersFast house-brand replacement listed on the OEM product page |
| Mist | CWMF042 | Mist LT800P 1-pack at The Home Depot (Model # LT800P CWMF042); Home Depot copy states tested and certified by NSF International to NSF/ANSI 42 |
| IcePure | RFC3500A / RWF3500A | Listed as compatible parts on FiltersFast OEM page |
| Tier1 | RWF1160 | Listed as compatible part on FiltersFast OEM page |
| Waterdrop | WD-LT800P | Listed as compatible part on FiltersFast OEM page |
| ClearChoice (DiscountFilters) | CLCH108 | Listed as compatible part (CLCH108) on FiltersFast OEM page |
All verified prices
| Kind | Store | Pack | Price | Shipping | Checked |
|---|---|---|---|---|---|
| Genuine OEM | FiltersFast | 1-pack OEM (buy 3+ $49.95 ea) | $54.95 + shipping item $54.95 | Free economy shipping on US orders over $99 to lower 48; orders under $99 ship for a fee shown at checkout (FiltersFast shipping policy on page) | 2026-11-11 |
| Aftermarket | The Home Depot | 1-pack Mist CWMF042 | $16.47 + shipping item $16.47 | Home Depot product page read; shipping/pickup terms vary by fulfilment choice at checkout, no flat free-shipping threshold stated on page | 2026-11-11 |
| More prices | FiltersFast | 1-pack (FiltersFast PH21430) | $29.95 + shipping item $29.95 | Free economy shipping on US orders over $99 to lower 48; orders under $99 ship for a fee shown at checkout (FiltersFast shipping policy on page) | 2026-11-11 |
| More prices | The Home Depot | 2-pack Mist CWMF242 | $25.99 + shipping item $25.99 | Home Depot product page read; shipping/pickup terms vary by fulfilment choice at checkout, no flat free-shipping threshold stated on page | 2026-11-11 |
| More prices | The Home Depot | 3-pack Mist CWMF342 | $34.99 + shipping item $34.99 | Home Depot product page read; shipping/pickup terms vary by fulfilment choice at checkout, no flat free-shipping threshold stated on page | 2026-11-11 |
Cheapest verified aftermarket single is the Mist 1-pack at Home Depot ($16.47) — less than half the FiltersFast house-brand price. Shipped totals null: Home Depot page read did not state a flat free-shipping threshold and FiltersFast free shipping starts at $99.
Specs
| Dimensions | 1.8" x 1.8" x 7" |
| Rated capacity | 200 gallons |
| Flow rate | 0.5 gpm |
| Replacement interval | 6 months |
| Quantity note | LT800P / LT800PC / LT800PCS are packaging variants of the same cartridge; no separate records created. |
| Certification (detail) | LG product pages state LT800P filtration certification per NSF standards NSF42 and NSF53, with a link to the NSF certified listings at info.nsf.org; FiltersFast OEM specification lists NSF 42, 53. Fridge.com's comparison table claims 42/53/401 for LT800P — that conflicts with LG's own statement (401 is LT1000P-only) and was rejected; this is the documented wrong/incumbent-data pattern the brief warned about. MERGE LISTING CHECK 2026-11-11: NSF's own directory (LG Electronics company listing, info.nsf.org) shows system ADQ73613401-S with replacement element ADQ73613401 covering LT800P/LT800PC/LT800PCS under NSF/ANSI 42 (chlorine, particulate Class I, taste & odor; 200 gal, 0.5 gpm) and NSF/ANSI 53 (2,4-D, asbestos, atrazine, benzene, carbofuran, cyst, lead, lindane, mercury, p-dichlorobenzene, toxaphene). Certified status rests on that directory entry. |
Sources
- https://www.filtersfast.com/p-lg-lt800-replacement-refrigerator-water-filter.asp?mod=73685
- https://www.lg.com/au/fridge-freezers/fridge-accessories/adq73613401/
- https://www.homedepot.com/p/Mist-LT800P-Refrigerator-Water-Filter-compatible-with-LG-LT800P-ADQ736134-Kenmore-9490-46-9490-469490-1-Pack-LT800P-CWMF042/307858680