In this guide, we’ll focus on three commonly used LG refrigerator filter models: LT1000P (ADQ747935), LT700P (ADQ36006101), and LT500P (used as a replacement for LG 5231JA2002A). Each filter is engineered with advanced carbon block and dual-filtration technologies, certified to reduce contaminants like chlorine, lead, mercury, and various chemicals, while delivering steady water flow. These filters are typically rated for 6 months of use or a certain gallon threshold, depending on local water quality and household consumption.
While original LG filters offer guarantee of fit and performance, there is a thriving market of third-party equivalent filters that meet similar certification standards and often come at a lower cost. Later in this post, we’ll cover features, capacity, and replacement timing for each LG filter model so you can confidently choose between genuine or compatible alternatives that suit your needs.
LG LT1000P / ADQ747935
The LG LT1000P, also known by its part number ADQ747935, is one of the most widely used refrigerator water filters in LG’s lineup. Designed to deliver crisp, clean water and fresh ice, it helps protect your household from harmful contaminants while maintaining the performance of your refrigerator’s water system.
Filtration Capacity: Provides up to 200 gallons (757 liters) of filtered water, depending on local water conditions and household usage.
Lifespan: Typically lasts around 6 months before replacement is needed.
Key Features:
Reduces lead, mercury, chlorine, pesticides, pharmaceuticals, and microbial cysts, along with other impurities that affect taste and odor.
NSF/ANSI certified to standards 42, 53, and 401 for safety and contaminant reduction.
Advanced carbon block technology ensures thorough filtration while keeping water flow steady.
Tool-free, push-and-click installation makes replacing the filter fast and simple.
Maintains steady ice production and water clarity throughout its lifespan.
When to Replace: Replace the LT1000P / ADQ747935 filter every 6 months or after filtering approximately 200 gallons of water. Signs that it’s time to replace include reduced water flow, unusual taste, or odor in your water or ice. Many LG refrigerators also feature a filter change light to remind you when service is due.
LG LT700P ADQ36006101
The LG LT700P, also listed as ADQ36006101, is a reliable refrigerator water filter designed for select LG French-door and side-by-side models. Built with advanced filtration technology, it ensures that every glass of water and batch of ice from your fridge is fresh, clean, and free of common contaminants.
Filtration Capacity: Delivers up to 200 gallons (757 liters) of filtered water before replacement is required.
Lifespan: Recommended replacement every 6 months, depending on water quality and usage levels.
Key Features:
Reduces chlorine taste and odor, lead, mercury, pesticides, pharmaceuticals, and microbial cysts.
Certified by NSF/ANSI to standards 42, 53, and 401 for material safety and contaminant reduction.
Carbon block technology provides consistent filtration while maintaining water flow.
Easy, tool-free installation with a simple push-and-turn fit.
Helps extend the life of your refrigerator’s water system by preventing buildup.
When to Replace: Change the LT700P / ADQ36006101 filter every 6 months or after about 200 gallons of use. If you notice reduced water pressure, changes in taste, or unusual odor, it’s time to swap the filter. Most LG refrigerators also include a filter indicator light that serves as a timely reminder.
lg lt500p replacement for lg 5231ja2002a refrigerator water filter
The LG LT500P, also known as 5231JA2002A, is a dependable replacement filter designed for a wide range of LG top-freezer, French-door, and side-by-side refrigerators. With advanced carbon block technology, it provides clean, great-tasting water and ice while reducing harmful contaminants and protecting your refrigerator’s water system.
Filtration Capacity: Up to 500 gallons (1,890 liters) of water before replacement, depending on usage and local water quality.
Lifespan: Lasts up to 6 months, though heavy use or poor water conditions may require more frequent replacement.
Key Features:
Reduces chlorine taste and odor, lead, mercury, pesticides, and microbial cysts, improving both safety and flavor.
NSF/ANSI certified for performance and safety standards.
Larger filtration capacity compared to newer compact filters, making it ideal for busy households.
Quick and easy installation with a push-in design—no tools required.
Helps maintain steady water flow and ice production.
When to Replace: The LT500P / 5231JA2002A should be replaced approximately every 6 months or after reaching its 500-gallon capacity. Watch for signs like reduced flow rate, off-taste, or odor in your water and ice. Many LG models also feature a filter indicator light to remind you when it’s time for a change.
Swapping out your LG refrigerator’s water filter every 6 months (or when you hit its usage limit) is necessary to preserve water quality, ice clarity, and appliance longevity. If cost or availability is a concern, many third-party equivalent filters are widely available and engineered to meet the same standards. Choose the model that matches your fridge, replace on schedule, and you’ll keep your water clean and your refrigerator running smoothly.