LG LT700P / ADQ36006101 Fridge Filter
The standard LG cartridge for the ADQ housing range. Fits LG French Door and side-by-side fridges built between 2011 and 2019 including GR-D257, GR-M257 and GR-X247. NSF 42 + 53 certified, twist-in, rated 757 litres or 6 months.
Full specification
The numbers on the LT700P that define whether a replacement is the correct one for your fridge.
| Part numbers | LT700PADQ36006101ADQ36006101-S |
| NSF certification | NSF-42 (chlorine, taste, odour) and NSF-53 (lead, cysts, select health contaminants). |
| Filter capacity | 757 litres (200 US gallons) or 6 months, whichever comes first. |
| Install type | Twist-in. Quarter-turn anti-clockwise to release, quarter-turn clockwise to seat. |
| Housing location | Interior top right corner of the main fridge compartment. |
| Flow rate | 1.89 litres per minute nominal. |
| Operating pressure | 30 to 120 psi. |
| Operating temperature | 1 to 38 °C. |
| Certified compatibles | Waterdrop WD-LT700P, EcoAqua EFF-6032A, Tier1 RWF1052. All three carry matching NSF-42 and NSF-53 certification. |
Fridges this cartridge fits
The LT700P fits the majority of LG French Door and side-by-side fridges sold in South Africa between roughly 2011 and 2019. The first six characters of your model number confirm.
GR-D257SL
GR-D257SLRA
GR-D257STSL
GR-M257SGHV
GR-M257PGHS
GR-M257DGHV
GR-X247CSAV
GR-X247CPAV
LFX25978ST
LMX28994ST
LFX31945ST
Kenmore 795.
Kenmore 469690
How the install works
The LT700P is the easier of the LG cartridges to fit. The twist-in mechanism in the top right interior housing seats cleanly, the LG O-ring design tolerates a slightly imperfect alignment better than the newer LT1000P, and the indicator reset is a single-button hold. A confident homeowner can do it in three minutes.
The one check we do on LT700P installs that homeowners often miss is the housing O-ring itself. On fridges that have been running with a spent cartridge for a year or more, the O-ring can take a compression set and start weeping with the new cartridge in. We carry replacement LG O-rings in the van for exactly this scenario.
- Shut off. Water feed off at the fridge supply line.
- Twist out. Quarter turn anti-clockwise, cartridge drops clear.
- O-ring check. Housing O-ring inspected, replaced if weeping.
- Twist in. New cartridge, quarter turn clockwise until flush.
- Flush + reset. Three litres through dispenser, filter button held five seconds.
The four-step install
Every LT700P visit follows the same sequence. The O-ring inspection is the LG-specific step that matters.
Confirm part
Model number in, LT700P / ADQ36006101 confirmed against housing.
Swap + O-ring
Supply off, old out, O-ring checked, new cartridge seated.
Flush three litres
Dispenser run until carbon fines clear and water tastes neutral.
Reset indicator
Filter button held five seconds until indicator resets to blue.
LG French Doors across Joburg
The GR-M257 and GR-X247 range is one of the most common French Door fridges in Sandton, Bryanston and Morningside kitchens. They earned their place because the dispenser delivers cleaner water than almost any competing brand when the filter is fresh. That advantage evaporates when the LT700P is left in for twelve or eighteen months instead of six.
- GR-M257SGHV is the most common model we service, particularly in kitchens renovated between 2014 and 2017.
- GR-D257SL side-by-sides are prevalent in slightly older homes in Linden, Northcliff and Fairland.
- GR-X247 is the premium French Door, usually in newer builds and full renovations. Worth fitting genuine on these while under warranty.
- All three models take the same LT700P, so the cartridge choice does not change with model.
Genuine LG or certified compatible?
LG fridges hold their value well and many GR-M257 and GR-X247 units are still inside the manufacturer warranty window. That changes the calculus slightly versus the Samsung cartridges.
LT700P (OEM)
- Original LG part number and box hologram
- Default for GR-M257 and GR-X247 still under warranty
- O-ring matches LG housing durometer exactly
- Supply chain from authorised LG SA distributor
Waterdrop / EcoAqua / Tier1
- Matching NSF-42 and NSF-53 certification on packaging
- Tooled to the same ADQ housing spec
- Sensible choice for GR-D257 side-by-sides past warranty
- We fit Waterdrop WD-LT700P where compatible is chosen
The full reasoning is in our plumber's view on genuine versus compatible fridge filters.
Frequently asked questions
The LT700P comes with its own set of questions because LG uses two different part-naming conventions and homeowners often find one on the fridge and the other in the manual.
The LT700P (ADQ36006101) fits LG French Door and side-by-side refrigerators in the GR-D257, GR-M257, GR-X247 and LRFXS range produced from around 2011 to 2019. It also fits Kenmore fridges that were rebadged LG units in that period. Send the full LG model number starting with GR or LF and we confirm.
Yes. LT700P is the LG marketing part name (LT stands for LG Total replacement, 700P is the generation number). ADQ36006101 is the LG internal part number. Both refer to the same twist-in cartridge. The older ADQ36006101-S suffix is the South African distribution variant, physically identical.
LG rates the LT700P at 757 litres (200 US gallons) or 6 months. The lower volume rating compared to the newer LT1000P reflects the older generation carbon bed. In Joburg municipal water, the 6-month time limit usually trips first. The indicator on the fridge panel counts down automatically and changes colour when the cartridge is due.
Yes. Genuine LG LT700P / ADQ36006101 cartridges carry NSF-42 (chlorine, taste and odour) and NSF-53 (lead, cysts) certification. The certification numbers are printed on the cartridge packaging. Certified compatibles should carry matching NSF numbers, not a generic NSF logo without a standard reference.
The LT700P (ADQ36006101) is the older generation cartridge for LG fridges from roughly 2011 to 2019. The LT1000P (ADQ747935) is the newer generation from 2019 onwards with tighter filtration (NSF-401 certification in addition to 42 and 53) and a higher 757-to-1514 litre capacity. The housings are different and the cartridges are not cross-compatible. Always match to the fridge year and model.
On most LG French Door models, press and hold the Water Filter button on the control panel for three to five seconds. The red indicator switches back to blue or clears entirely. On GR-D257 side-by-sides, the reset is a combination of the Filter and Light buttons held together. We reset the indicator as part of every install.
Yes for a straight replacement. The LT700P is a twist-in cartridge in the top right interior of the fridge. Turn the water feed off, quarter turn anti-clockwise, cartridge drops, new one twists in the same way. Flush for three minutes, reset the indicator. Takes about three minutes start to finish. We supply the cartridge with an instruction sheet if you prefer DIY.
Yes. LG French Door fridges are common in Sandton, Bryanston, Fourways, Morningside and Hyde Park kitchens. We service the LT700P and its housing range across the northern Johannesburg suburbs as part of the weekly fridge filter route. Typical cartridge swap is a 20 to 30 minute visit including flush and indicator reset.
Need an LT700P fitted?
Confirm your LG fridge model (starts with GR or LF), and we confirm the cartridge and book the 20-minute install. Genuine or certified compatible, both quoted together.
Newer LG French Door? You probably need LT1000P / ADQ747935. Back to LG filters hub or the fridge filters hub.