LG Refrigerator Model LRFXS2503S Fresh Air Filter

1 Pack

$15.99 USD $24.64 USD

LG Refrigerator Model LRFXS2503S Fresh Air Filter

LG 25 Cu. Ft. Stainless Smart French Door Refrigerator Model LRFXS2503S uses Genuine LT120F Replacement Air Filter

$24.64 USD $15.99 USD

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The LG refrigerator model LRFXS2503S fresh air filter helps reduce trapped food odors and keeps your fridge interior smelling fresher. Its activated carbon material helps absorb everyday smells from onions, fish, dairy, leftovers, sauces, and other strong foods stored inside the refrigerator.

This replacement air filter for LG LRFXS2503S is designed for a simple snap-and-twist installation. You do not need tools, and the filter can be replaced in just a few moments. For best freshness, replace the filter every 6 months or sooner if odors return. It is an easy maintenance step that helps keep your refrigerator cleaner for daily use. Your purchase is also covered by our 30-day return/refund policy

Read the Replacement Guide with photos, compatible models, tips, and FAQs. Need water too? Shop LG LT1000P. Need both? Choose the LG Combo Kit.

LG refrigerator model LRFXS2503S compatible fresh air filter LT120F

LGLRFXS2503S refrigerator with air filter packaging on a light blue background

Key Features

Forced Air Circulation: Works with a dedicated refrigerator fan to push air through a carbon-deodorizing layer for maximum coverage.
Airborne Pathogen & Particle Reduction: Helps remove airborne bacteria, mold spores, yeast, and dust particulates, contributing to a cleaner and healthier refrigerator environment.
Intense Odor Neutralization: Uses highly concentrated activated carbon to trap and eliminate strong food odors like onion, garlic, and fish.
Cross-Contamination Prevention: Prevents strong odors from seeping into neutral foods like milk, butter, and ice.
Freshness Preservation: Helps keep the interior environment clean, which can help extend the "tasting fresh" life of produce and leftovers.
Snap-and-Lock Fit: Designed for a precise fit behind the "Fresh Air Filter" cover on the back interior wall of the refrigerator.
Compact 6-Month Cycle: Provides high-efficiency deodorizing in a small 3.25" x 3.25" footprint with a recommended 6-month replacement cycle

Specifications

Brand: LG
Compatible With: LG Refrigerator Model Number LRFXS2503S
Filter Type: LG Replacement Air Filter
Model Number: LG LT120F
Part Number: ADQ73214404
Dimensions: ‎3.3" D x 1.1" W x 4.5" H
Material: ‎Carbon/HEPA filter media
Color: White, Black
Weight: ‎1.44 lbs
Temperature Range: 34°F to 45°F
Filter Lifespan: 6 months
Certifications: NSF/ANSI 42, 53, 401

Frigidaire Pure Air Ultra II Refrigerator Air Filter pack of 2 with text about odor elimination and testing results on a white background

How It Works

The air filter uses activated carbon technology to continuously circulate and purify the air inside your refrigerator — neutralizing odors from foods like fish, leftovers, and produce before they spread or affect flavor.

Activated Carbon Core: Uses a dense carbon matrix to adsorb odor molecules and gases on contact.
Continuous Air Circulation: Works with your fridge's fan to pull air through the filter repeatedly, 24/7.
Adsorption Technology: Traps contaminants at a molecular level rather than just masking smells.
Passive Filtration: Requires no maintenance between replacements—install, and it works automatically.

Why It Matters

Odor Control

Prevents food odors from spreading and mixing inside your refrigerator.

Freshness Protection

Removes ethylene gas that accelerates the spoilage of fruits and vegetables.

Food Safety

Inhibits airborne bacteria and mold spores from contaminating stored food.

Why It Matters — Fresh Refrigerator Interior

What This Filter Removes

Our certified filtration system targets and removes a wide range of harmful contaminants and odors.

Food Odors: Neutralize strong smells from fish, leftovers, onions, and other pungent foods.
Ethylene Gas: Absorbs the natural gas emitted by ripening produce that speeds up spoilage
Airborne Bacteria: Captures and reduces bacteria circulating in the air inside your fridge.
Mold Spores: Filters out mold spores before they can settle and grow on stored food
Volatile Organic Compounds (VOCs): Remove harmful chemical compounds that can affect food quality.
Cross-Contamination Particles: Prevents flavor and odor transfer between different food items.

When to Replace Your Refrigerator Air Filter

Every 6 Months

Activated carbon saturates over time. Replacing every 6 months ensures continuous odor and gas adsorption — even if the filter looks clean.

Filter Alert Light

When your fridge's air filter indicator turns red or begins flashing, replace immediately. The sensor tracks usage and airflow performance automatically.

Persistent Fridge Odors

If odors linger inside a clean fridge, your air filter is exhausted. Don't wait for the indicator — trust your nose and replace it promptly.

See which water and air filter is compatible with your refrigerator.

Find Compatible Models

FAQ

Q: Which Replacement air filter for LG refrigerator model LRFXS2503S?
A: LG LT120F is the recommended compatible air filter for LRFXS2503S refrigerator.

Q: How do I know if it fits my LG refrigerator LRFXS2503S?
A: If your LG fridge has an air filter compartment, especially in French Door or Side-by-Side models, it’s likely compatible. Check your user manual or model number.

Q: Where is the fresh air filter on LRFXS2503S LG fridge?
A: The Fresh Air Filter for LG refrigerator LRFXS2503S is typically located inside the refrigerator's compartment, not in the freezer or on the exterior.

Q: How often should I replace the LRFXS2503S Air Filter?
A: You should replace the air filter every 6 months for best results. If your fridge has strong odors, consider replacing it sooner.

Q: Can I install LRFXS2503S filter myself?
A: Yes, it uses a simple tool-free push-in design for quick installation.

Q: How do I replace LG LRFXS2503S fresh air filter?
A: Turn the fresh air filter cover counterclockwise to remove it, then pull out the old filter. Insert the new filter with the “FRONT” label facing outward, align the cover tabs with the hooks on the fridge, rotate it clockwise to lock, and press the Fresh Air Filter button for 3 seconds to reset.

Q: What to do after changing LRFXS2503S air filter?
A: To reset the air filter on your LG refrigerator press and hold the "Air Filter" or "Fresh Air Filter" button on the control panel for approximately 3 to 5 seconds. The indicator light will turn off, signaling that the filter system has been reset.

Q: What if the “Replace Filter” light does not reset after installing?
A: After installation, you must press and hold the Fresh Air Filter button for three seconds. If the light remains on, double-check that the cover is correctly aligned and locked.

Q: Will this air filter fit all LG french door refrigerators?
A: It’s specifically made for the LG Refrigerator Model LRFXS2503S, but also fits other select french door models. Always verify your model number before purchase.

Q: Are aftermarket filters safe?
A: Many are safe if they list NSF 42 or 53 certifications. Always verify the model compatibility

Q: What if I’m not happy with LRFXS2503S filter?
A: We offer 30 Days return/refund policies if the filter does not fit with LG Refrigerator Model Number LRFXS2503S.