LT800P Filters Fast® PH21430 Replacement for LG LT800P Refrigerator Water Filter

Water is essential to your family's well-being, and that's why the Filters Fast® Replacement for LG LT800P Refrigerator Water Filter is a necessity! This filter features advanced carbon block technology that reduces up to 97% of chlorine and odor from your drinking water and ice. Replacing your filter every 200 gallons or 6 months will keep your water fresh, clean, and crisp. The difference in the taste and quality of your water will be undeniable!

The PH21430 is a Filters Fast® brand product that is certified for NSF Standard 42, which verifies that the product is made from safe and durable materials with claims backed by test data.

Note: The PureH2O PH21430 is now the Filters Fast® PH21430. Same great filter, same great price!

Specifications:

• Brand: Filters Fast®
• Part Number: PH21430
• Pack Size: 1
• Filter Life (Months): 6
• Filter Life (Gallons): 200
• Filter Media: Carbon Block
• Flow Rate: 0.5 gpm
• Operating Pressure: 20 - 100 psi
• Operating Temperature: 33 - 100 ° F
• NSF Certification(s): 42

How do you install the Filters Fast® Replacement for LG LT800P?

INSTALLING THE LG LT800P Replacement by Filters Fast® - BESIDE DOOR

1. Lift-up and remove the lower door bin. Swing the right end of the old Filters Fast® Replacement for LG LT800P out of the compartment and then grasp and rotate the water filter counter-clockwise to remove it from the filter head.
2. Take a new Filters Fast® Replacement for LG LT800P water filter out of its packaging and remove the protective cover from the o-rings. Insert the new Filters Fast® Replacement for LG LT800P filter into the filter head and rotate it clockwise until the arrow on the new filter lines up with the arrow on the filter head. Swing the filter back into the compartment.
3. Put the lower door bin back to its original position. Now that the Filters Fast® Replacement for LG LT800P is replaced, dispense 2.5 gallons of water to remove trapped air and contaminants from the system. Depress and release the dispenser pad for cycles of 30 seconds ON and 60 seconds OFF, rather than dispensing continuously.
4. Replace the water filter when the replace filter icon turns on. After replacing the water filter, press and hold the Water Filter button for three seconds to turn the icon light off.

INSTALLING THE Filters Fast® Replacement for LG LT800P - ROOF TOP

1. If the top shelf, which is located below the water filter, is in the highest position, it will need to be removed.
2. Pull the old Filters Fast® Replacement for LG LT800P water filter downward and turn it counter-clockwise to pull it out. Make sure to rotate the filter down completely before pulling it out of the manifold hole.
3. Take a new Filters Fast® Replacement for LG LT800P out of its packaging and remove the protective cover from the o-rings. With the filter tabs in the horizontal position, push the new filter into the manifold hole, rotate it up into place and close the cover.
4. Put the lower door bin back to its original position. Now that the Filters Fast® Replacement for LG LT800P filter is replaced, dispense 2.5 gallons of water to remove trapped air and contaminants from the system. Depress and release the dispenser pad for cycles of 30 seconds ON and 60 seconds OFF, rather than dispensing continuously.
5. Replace the water filter when the replace filter icon turns on. After replacing the water filter, press and hold the Water Filter button for three seconds to turn the icon light off.

How often should you replace the Filters Fast® Replacement for LG LT800P?

• Changing your Filters Fast® Replacement for LG LT800P is a very quick and easy process that should be done once every six months.

What contaminants does the Filters Fast® Replacement for LG LT800P reduce?

• The Filters Fast® Replacement for LG LT800P is NSF 42 certified, which means that it reduces the following contaminants:

  • Chlorine
  • Taste & Odor

Customer Reviews:

Total Reviews: 28 | Average Rating: 4.7 / 5.0

Anita Usmiani2026-03-13

I’ve been using this product for several years now. It is easy to install and provides good clean water for me as well as lasting a reasonable time before I need to change

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customer2026-02-28

These filters last longer than the LG brand.

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Pearl Robertson2025-11-02

Great ! Thanks

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customer2025-10-14

These filters in our opinion are superior to the LG LT800P filters.

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customerBill2025-08-26

So far it works with no problems

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customer2025-08-23

Great product

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John Ryan2025-07-29

Get the job it’s supposed to do quite satisfied

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MARTHA CONLON2025-05-15

very good great service

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LINDA2025-03-22

Works well. Great value.

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customer2025-03-04

These filters have actually been working better than the LG original filters.

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Ellen Herman2025-02-02

Easy to install and works well.

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Diane Mccurry2024-12-24

Easy use and fresh water.

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customer2024-11-14

The product does it's work.

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Jacquelina Pennington2024-09-28

This product is just as good as the expensive brands in the stores.

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Wendy DeIulio2024-09-01

Fits perfectly

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John Miravitlles .2023-09-28

EXCELLENT US I INDICTED BEFORE

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Charles Barron2023-06-09

made in china !

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Kathryn2023-04-11

Works well in my LG refrigerator. I have the filters sent to my home every 6 months so I always have the new filter available when I need it.

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Martin2023-02-23

I've never had a problem. What more could you ask?

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customer2022-09-06

Great product - Great price

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