LG LT800P Refrigerator Water Filter Replacement

Getting clean, fresh-tasting water straight from your LG refrigerator is easier when you have the right filter in place. The LG LT800P is the replacement water filter built for compatible LG French door and side-by-side refrigerator models, delivering NSF 42 and 53 certified reduction of chlorine taste and odor, lead, and other common contaminants through activated carbon block filtration. 

The twist-in installation is specific to the LT800P housing and takes under a minute to swap with no tools required. Always verify the part number against your LG refrigerator model before ordering, as the LT800P is a distinct filter code and is not interchangeable with other LG water filter formats.

Why Choose the LG LT800P Refrigerator Water Filter

The LT800P is tested and certified to NSF 42 and 53 standards, targeting contaminants that affect both water taste and health quality at the source before water reaches the dispenser or ice maker. Here is what the LG LT800P specifically addresses:

• Lead and heavy metals
• Chlorine taste and odor
• Volatile organic compounds (VOCs)
• Cysts and sediment
• Particulates
• Asbestos fibers

LG LT800P Refrigerator Water Filter Specifications

• Product Name: LG LT800P Refrigerator Water Filter
• Part Number: LT800P
• Certification: NSF 42 and 53
• Filter Capacity: 200 gallons
• Filter Life: Up to 6 months
• Flow Rate: 0.5 GPM
• Operating Temperature: 33 to 100 degrees Fahrenheit
• Working Pressure: 30 to 120 PSI
• Filter Media: Activated carbon block
• Installation Type: Twist-in, tool-free
• Compatible Models: Select LG French door and side-by-side refrigerators requiring the LT800P filter code
• Brand: LG 

Easy Installation for the LG LT800P Refrigerator Water Filter

The LT800P uses a twist-in design that requires no tools and takes under a minute to complete. Here is how the swap works:

1. Locate the filter housing inside the LG refrigerator fresh food compartment, typically in the upper right corner
2. Twist the old filter counterclockwise until it releases from the housing
3. Pull the old LG LT800P filter straight out
4. Align the new filter with the housing inlet and insert it firmly
5. Twist clockwise until it locks securely into position
6. Run 2 to 3 gallons of water through the dispenser before drinking for the best filtration result
7. Reset the filter indicator light per the LG refrigerator user guide

When to Replace the LG LT800P Refrigerator Water Filter

Replace the LG LT800P refrigerator water filter when any of the following occur:

• Every 6 months or 200 gallons, whichever comes first
• Dispensed water develops a flat taste or noticeable odor
• Water or ice from the refrigerator tastes of chlorine
• Water flow from the dispenser drops noticeably below normal
• The filter indicator light activates on the LG refrigerator control panel

Key Benefits

• NSF 42 and 53 certified for verified lead, heavy metal, and chlorine taste and odor reduction
• Activated carbon block filtration for consistent contaminant reduction through the full 200 gallon service life
• Twist-in tool-free installation completed in under a minute with no plumbing knowledge required
• 200 gallon or 6 month service life for a simple twice-yearly replacement schedule
• Replaces ADQ73613401, ADQ73613402, and MDJ64844601 covering multiple compatible part number variants under a single filter code
• Compatible with select LG French door and side-by-side refrigerators for a precise fit and reliable seal at the housing connection
• Filters water going to both the dispenser and ice maker on most compatible LG refrigerator models

FAQs

What is the difference between the LG LT800P and the LT1000P?

The LT800P and LT1000P are separate filter codes designed for different LG refrigerator model generations with distinct housing designs. They are not interchangeable. The LT1000P is a newer filter format used in more recent LG models, while the LT800P covers an earlier generation. Always confirm the correct filter code for your specific model before ordering.

Is the LG LT800P the same as ADQ73613401 or ADQ73613402?

Yes. ADQ73613401, ADQ73613402, and MDJ64844601 are alternative part numbers for the same LT800P filter format. If your refrigerator currently uses any of those part numbers, the LT800P is the correct replacement.

Does the LG LT800P filter water going to the ice maker as well as the dispenser?

On most compatible LG refrigerator models the LT800P serves both the water dispenser and the ice maker from a single filter housing. Confirming this against your specific model in the LG user guide is the most reliable way to verify whether the LT800P covers both functions on your unit.

Why does my water still taste of chlorine after installing a new LT800P filter?

Running 2 to 3 gallons through the dispenser after installation flushes carbon fines and trapped air from the new filter and typically resolves any residual taste issues. If chlorine taste persists beyond the flush cycle, confirm the filter is fully locked into the housing and that the old filter indicator has been reset, as an unreset indicator does not affect filtration but can cause confusion about filter status.

How do I know if the LT800P is fully locked into the housing after installation?

A correctly installed LT800P will sit flush with the housing with no visible gap at the connection point and should meet firm resistance if pulled gently. Water dripping from the housing after installation usually indicates the filter is not fully seated. Remove and reinsert the filter, twisting clockwise until it locks firmly before running water through the dispenser.

Can I use the LG LT800P in a bottom freezer LG refrigerator?

The LT800P is primarily compatible with LG French door and side-by-side refrigerator models. Compatibility with bottom freezer models depends on the specific model number and filter housing design. Checking the filter code label inside your refrigerator compartment or the existing installed filter is the most reliable way to confirm before ordering.