LG water filter with packaging on a white background

LG LSC22991ST Water Filter

1 Pack

$32.88 USD $46.99 USD

LG LSC22991ST Water Filter

Your 21.6 cu. ft. Counter Depth Side-by-Side Refrigerator Model No. LSC22991ST uses the LT800P replacement water filter.

$46.99 USD $32.88 USD

1 day handling time with fastest shipment

🚚 Free Shipping 🔁 Easy Return 👌100% Fit

Your LG LSC22991ST water filter is one of those quiet fixes—cleaner water, better taste, and ice that just looks right. It uses an LT800P replacement water filter, made to fit properly and keep everything flowing smooth. No fuss. Just works.

It helps improve water quality with every pour, cutting down chlorine taste and everyday impurities. And yeah, it’s NSF 42 and 53 certified, so it’s doing what it says. You might not notice it every day… but once it gets old, you will. Installation is simple. Twist, lock, done. No tools.

Replace it every 6 months. Easy habit, but it keeps your water the way it should be.

LG LSC22991ST refrigerator with water filter on a light blue background

Key Features

Perfect Fit : Designed specifically for LG Refrigerator Model LSC22991ST for reliable compatibility.

LT800P Water Filter : Ensures clean, fresh-tasting drinking water and clear ice every day.

NSF Certified : Tested to NSF Standards 42 & 53 to help reduce chlorine taste, odor, lead, and harmful contaminants.

6-Month Replacement Cycle : Provides effective filtration for up to 6 months or 200 gallons of use.

Easy, Tool-Free Installation : Simple twist-and-lock design allows quick replacement in minutes.

Protects Your Refrigerator : Helps prevent sediment buildup and supports long-term appliance performance.

Specifications

Brand: LG
Filter Model: LG LT800P
Part No.: ADQ73613401, ADQ73613408
Refrigerator Model Number: LSC22991ST
Filter Type: Refrigerator Water Filter
Dimensions: 2.1" D x 2.1" W x 7.1" H
Material: BPA-free, high-quality filtration media
Cartridge Weight: 0.5 lbs
Flow Rate: 0.5 gallons per minute
Pressure Range: 20 – 120 psi
Temperature Range: 33 – 100°F
Filter Life: 6 months or 200 gallons
Certifications: NSF 42 and 53

Our Replacement Water Filters Are NSF Certified To Reduce 99% Contaminants

Hg

Chlorine

Cl

Mercury

Pb

Lead

Pesticides

Herbicides

Pharmaceuticals

See which water and air filters are compatible with your refrigerator.

Find Compatible Models

When to Replace Your Water Filter

Every 6 Months or 200 Gallons

Most refrigerator water filters are designed to last approximately 6 months or filter up to 200 gallons of water — whichever comes first.

When Your Fridge Displays a Filter Alert

Modern LG, Samsung, Whirlpool, and Frigidaire refrigerators have built-in filter indicators that notify you when it's time for a replacement.

Changes in Taste, Odor, or Flow

A drop in water pressure, an unusual taste, or an off smell from your dispenser are clear signs your filter is overdue for a change.

Compatible Model Numbers

LG Refrigerator Model Number LSC22991ST

Frequently Asked Questions

Q: Where is the LG Model LSC22991ST water filter located?
A: The filter is usually located inside the refrigerator, near the top-left corner or rear interior wall.

Q: How often should I replace the LG LSC22991ST water filter?
A: You should replace the LSC22991ST filter every 6 months or after 200 gallons, whichever comes first.

Q: What water filter does LG refrigerator LSC22991ST use?
A: Your LSC22991ST LG refrigerator uses the LT800P water filter for clean drinking water and ice.

Q: Is this a genuine replacement water filter for LG LSC22991ST?
A: Yes

Q: What contaminants does the LSC22991ST water filter reduce?
A: The filter helps reduce chlorine taste and odor, lead, mercury, cysts, and other harmful impurities.

Q: Does the filter work for both water and ice dispensers?
A: Yes, the LT800P filter is used for both drinking water and ice production.

Q: How do I change the LG refrigerator water filter LSC22991ST?
A: Open the filter compartment, twist the old filter counterclockwise, insert the new LT800P, twist until locked, and flush water for 2–3 minutes.

Q: What if I’m not happy with the filter?
A: Your satisfaction is guaranteed! Every LG refrigerator water filter LSC22991ST with a 30-day return and refund assurance. If you are not happy with the purchase, simply contact us for a hassle-free refund or replacement.