LG LT600P Refrigerator Water Filter (5231JA2006B)
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: 5231JA2006A-S (system) — LT600P / LT600PC / LT600PCS)
Prices checked 2026-11-11: genuine from $69.95 + shipping at FiltersFast · aftermarket from $29.95 + shipping at FiltersFast. 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 11 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 (11)
Partial list: models published in genuine-cartridge retail listings (Woot/Ubuy compatible-model lists) plus the FiltersFast page header model LFX23961SB. LG's own support finder chart includes an LT600P column but its model-to-column mapping could not be extracted reliably from the page text, so no models were inferred from it. Long, skinny cartridge for older LG French door and side-by-side models (roughly 2005-2010 era). NOT interchangeable with LT500P (different collar). Suffixes A/B/F on 5231JA2006x are production revisions of the same cartridge.
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: 5231JA2006A-S (system) — LT600P / LT600PC / LT600PCS)
RESOLVED at merge listing check 2026-11-11: NSF's own directory (LG Electronics listing) shows system 5231JA2006A-S with element 5231JA2006F covering LT600P/LT600PC/LT600PCS at 300 gal / 0.5 gpm under NSF/ANSI 42 (chlorine, particulate Class I, taste & odor) AND NSF/ANSI 53 (incl. 2,4-D reduction). The directory arbitrates the research conflict: DiscountFilters' 42+53 at 300 gal matches the listing; FilterCompass's 42-only at 200 gal does not and is rejected. Woot copy adding 401 is a copy error — no 401 listing exists for this system.
Aftermarket equivalents
| Brand | Part number | Note |
|---|---|---|
| FiltersFast | PH21400 | FiltersFast house-brand replacement listed on the OEM product page |
| EcoAqua | EFF-6004A | Listed among DiscountFilters 5231JA2006B-compatible filters |
| Waterdrop | LT600P-B | Waterdrop replacement whose manual lists LT600P / 5231JA2006A/B/F as replaced filters; certified by NSF International to NSF/ANSI 42 in that manual |
| ClearChoice (DiscountFilters) | CLCH104 | Listed among DiscountFilters 5231JA2006B-compatible filters |
| Swift Green Filters | SGF-LB60 | Listed among DiscountFilters 5231JA2006B-compatible filters |
All verified prices
| Kind | Store | Pack | Price | Shipping | Checked |
|---|---|---|---|---|---|
| Genuine OEM | FiltersFast | 1-pack OEM (buy 3+ $64.95 ea) | $69.95 + shipping item $69.95 | 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 | FiltersFast | 1-pack (FiltersFast PH21400) | $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 | DiscountFilters | 1-pack OEM (LT600P) | $64.95 + shipping item $64.95 | Free shipping on orders over $70; single filter is under threshold so shipping is charged at checkout (DiscountFilters) | 2026-11-11 |
Capacity conflict affects value comparisons: DiscountFilters and LG retail listings rate the OEM cartridge at 300 gallons; FilterCompass rates it at 200 gallons. Prices above are per cartridge regardless of rating. Shipped totals null (single filters under both stores' free-shipping thresholds: FiltersFast $99, DiscountFilters $70).
Specs
| Dimensions | approx. 12" (L) x 2-1/4" (dia.) |
| Rated capacity | 300 gallons |
| Flow rate | 0.5 gpm |
| Replacement interval | 6 months |
| Certification (detail) | RESOLVED at merge listing check 2026-11-11: NSF's own directory (LG Electronics listing) shows system 5231JA2006A-S with element 5231JA2006F covering LT600P/LT600PC/LT600PCS at 300 gal / 0.5 gpm under NSF/ANSI 42 (chlorine, particulate Class I, taste & odor) AND NSF/ANSI 53 (incl. 2,4-D reduction). The directory arbitrates the research conflict: DiscountFilters' 42+53 at 300 gal matches the listing; FilterCompass's 42-only at 200 gal does not and is rejected. Woot copy adding 401 is a copy error — no 401 listing exists for this system. |