LG Water Filter vs HDX: Which Refrigerator Water Filter Is Best

LG and HDX water filters are compared for LG refrigerators, highlighting differences in compatibility, filtration process, lifespan, cost, and warranty. LG filters are OEM with a three-stage filtration system, while HDX offers economical alternatives with I.M.P.A.C.T. technology. Both need replacement every six months for optimal performance. HDX filters are praised for affordability, fitting various models, and maintaining water quality.

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Written by: Mohammad Waseem

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Have you ever found yourself scratching your head over whether to snag an LG water filter or HDX for your LG refrigerator? Yep, same here. 

With all the talk about replacement water filters, drinking water purity, and getting rid of chlorine, odors, and impurities—it’s a lot to digest. 

Let’s dive into the details of these filter replacements and see which one gives you the best tasting water, free from sediment and all, thanks to NSF-certified filtration! 

Key Takeaways:

  • Compatibility: Ensure the filter matches your LG refrigerator model.
  • Filtration Quality: LG offers advanced 3-stage filtration, while HDX uses IMPACT technology.
  • Cost: HDX filters are more budget-friendly.
  • Lifespan: Both brands recommend replacing filters every six months.
  • Warranty: LG offers a 1-year limited warranty; HDX provides a 90-day limited warranty.

LG Water Filter vs HDX: Which Refrigerator Water Filter Is Best for Me?

Alright, let’s break down the age-old battle of LG vs. HDX water filters.

If you’re hitting up Home Depot for a replacement filter, you’ll notice stores are littered with options like the LG LT700P and the HDX FML-3. Both are solid choices, but there are some key differences to keep in mind.

First off, while the HDX refrigerator water filter is a generic filter, it aims to mimic the performance of brand name counterparts like LG’s original OEM filter.

LG filter obviously has name-brand loyalty with it, and it fits like a glove if you wanna get technical about it.

Now, speaking of fit, the HDX FML-3 is designed as a water filter replacement that fits LG models among others.

If you’re going for a refrigerator water filter replacement fit from Home Depot, it’ll likely be easier on your wallet. But how do they stack up in performance?

Customer reviews and NSF certifications both point out that HDX does a decent job of improving the taste and odor of your municipal water, plus getting rid of common impurities.

When it comes down to the nitty-gritty, LG filters generally employ a tight-as-heck carbon block design to purify your water supply. Result is often better-tasting water and fewer hefty chunks of whatever is lurking in there (yikes!).

On the other hand, HDX filters might not be as advanced, but they’re still solid contenders for a new filter. Not to mention, HDX replacements could make your ice cubes pretty darn clear without wrecking your wallet.

If you’re thinking about taking Home Depot’s word for it, the HDX refrigerator water filter isn’t a bad shout.

It handles the basics of keeping your tasting water and ice on the up-and-up without needing to take out a second mortgage.

Whether you end up with an LG or an HDX, the bottom line is to pick what fits your budget and lifestyle. 

LG Water Filter vs HDX

LG Water Filter

HDX Water Filter

1. Compatibility

HDX FML-3 filters work for LG fridges that use the LT700P, ADQ36006101, ADQ36006102, LFX25976SW, and 46-9690 filters. If any of those numbers look familiar, you’re golden with the FML-3.

If your LG fridge uses the LG/Cuno ADQ73613401 or LT800P filters, you wanna go with the HDX FML-4. This one’s also good for those fancy LG French doors and side-by-side models.

Big diff between these two? The FML-3 is for the LT700P filter, while the FML-4 is for the LT800P filter. LG uses both 700 and 800 series filters in different models, It’s super important to grab the right one for your specific fridge.

2. Filtration Process

let’s break down the key differences between the LG and HDX fridge water filters in a more casual, friendly way.

LG uses this cool 3-stage filtration thing. There’s a sediment filter to catch the big stuff. Then, it moves to an activated carbon filter, which is like the main workhorse, getting rid of nasties like chlorine, lead, and mercury. Finally, there’s an ion exchange resin filter to polish things off. This combo makes your water taste better and look clearer.

HDX goes for something called Integrated Membrane Pre-Activated Carbon Technology, or I.M.P.A.C.T. for short. It’s a bit of a mouthful, but basically, it combines a microporous membrane with a high-quality activated carbon block.

This economical filter will deliver fresh water with ease. This setup is super effective at knocking out cysts, bacteria, and all kinds of other stuff.

It keeps the water flowing well and helps the filter last longer. The HDX filter is NSF certified, which means it’s proven to reduce chlorine, lead, iron, manganese, hydrogen sulfide, herbicides, and insecticides.

3. Lifespan

For LG, ya gotta change the water filter every 6 months to get rid of bacteria and fine particles. The water purifier needs a bit more attention: the sediment filter every 4 months, the pre-carbon block filter every 6 months, and the UF membrane filter once a year.

Now for the HDX filters, both the FML-3 and FML-4 need to be swapped out every 6 months or after about 300 gallons of water. If you buy the HDX dual pack, you’re set for a year since each filter lasts about 6 months.

4. Cost

You’re looking at the LG water filter, right? The LT600P one. It’s a solid choice but kinda pricey at $49.99 for just one filter. Ouch.

Now, on the flip side, we’ve got the HDX filter, and FML-4 model. You can snag a 2-pack of these bad boys for $49.95 at Home Depot. Pretty sweet deal, huh?

But, wait a sec, if you’re hopping onto Amazon, that same 2-pack of HDX filters suddenly jumps to ₹11,096.78. That’s like $135 USD! Crazy difference, right?

5. Warranty

I have some info for ya on the warranties for LG and HDX refrigerator water filters:

LG Water Filter: LG LT600P water filter has a 1-year limited warranty. LG says you should swap it out every 6 months to keep things running smoothly.

HDX Water Filter: For the HDX FML-3 and FML-4 replacement filters, there’s a 90-day limited warranty from when you buy it. They recommend changing the filters every 6 months or after 300 gallons, whichever comes first.

Are HDX water filters as good as LG?

Are HDX water filters from Home Depot as good as LG? If you’re considering a refrigerator filter today and get parts and filter replacement refrigerator, deciding between an LG and an HDX refrigerator filter can be tricky. HDX claims their replacement filter for your LG fridge is pretty much the same. The replacement refrigerator water filter removes impurities, including the chlorine taste and odor.

Their refrigerator filter is an ideal choice, specially crafted for users seeking a cost-effective replacement filter for your LG unit. Moreover, the Inline filter ensures water treatment is at its best. When the water passes through the filter, it removes contaminants and leaves you with clean water for your water bottles and ice maker.

Although HDX is not a name brand like LG, their replacement refrigerator filter works efficiently. You can get their replacement refrigerator filter–aquapurefilters.com or straight from Home Depot. Comparing to the replacement filter for your lg fridge, HDX definitely holds its ground. So for many, the replacement refrigerator water filter is an ideal replacement, fits in place of lg filter model.

Are refrigerator water filters dangerous if not changed, or is that just marketing?

You’re wondering if the whole water filter replacement fits LG thing is legit? If you’ve got an LG refrigerator and ice maker, it’s not just marketing.

When you don’t replace the filter, all sorts of gunk can build up inside the filter. Trust me, using a generic water filter can mess with your great tasting water and clear ice.

A good replacement for LG fridges, ensures your water through the filter stays clean. You know, brands like Home Depot’s HDX make it easy to keep that tasting water and clear ice cubes flowing.

Yes, it’s worth it to seek out the ideal replacement filter.

It’s cool if you prefer bottled water, but a proper filter for your LG refrigerator can save money and hassle. Besides, a good filter model ensures your water filtration system works at its peak, giving you great tasting water and clear ice. 


What are the main differences between LG Water Filter and HDX replacement refrigerator filters?

The main differences lie in the design, compatibility, and price. LG filters are OEM replacements, directly from the manufacturer, and generally ensure compatibility with LG refrigerators. On the other hand, HDX brand filters are more economical and fit a variety of refrigerator models but are usually a third-party option.

Are HDX replacement refrigerator water filters as reliable as LG’s original filters?

Reliability can vary. HDX replacement refrigerator water filters tend to be more economical and widely available, but they may not always match the filtration efficiency of LG’s original filters. Customer reviews on numerous platforms, like Amazon, offer mixed feedback, with some praising HDX for its affordability and others noting slight differences in water taste and clarity.

How often should I replace the refrigerator water filter?

It’s recommended to replace your refrigerator water filter every six months. This ensures your water and ice remain clean and free of contaminants. Whether you choose an LG Water Filter or an HDX replacement refrigerator water filter, regular replacement is key for maintaining the quality of your filtered water.

Can I buy these filters from stores like Amazon?

Yes, both LG and HDX replacement refrigerator water filters are available on Amazon. Purchasing from Amazon allows you to easily read customer reviews, compare prices, and take advantage of fast shipping. It’s a convenient option if you need a new refrigerator replacement water filter today.

Will an HDX replacement refrigerator water filter fit my LG French door refrigerator?

HDX replacement refrigerator water filters are designed to be compatible with a range of refrigerator models, including LG French door refrigerators. However, it’s crucial to check the filter’s specifications and compatibility details provided by the manufacturer to ensure a proper fit.

Do I get better filtered water quality with LG original filters?

LG original filters are designed and tested by the manufacturer to meet specific standards for water quality. While HDX filters also offer clear water, LG’s original filters are likely to offer optimized performance, especially in terms of removing specific contaminants. Customer reviews often reflect a satisfaction with the filtered water quality from LG’s OEM replacements.

Why should I consider HDX filters over LG filters?

One of the main reasons to consider HDX filters is their cost-effectiveness. They are typically more economical, making them an attractive option if you’re looking to save money. Additionally, HDX filters are easily available and have received decent customer reviews, indicating they provide good value for money.

Where can I buy a replacement refrigerator filter today?

You can purchase a replacement refrigerator filter today from various retailers, including Amazon, big box stores, and directly from the manufacturer’s website like aquapurefilters.com. Each option has its benefits, from convenience to assured authenticity and fast shipping.

Should I purchase directly from the manufacturer or a third-party seller?

Purchasing directly from the manufacturer often ensures that you are getting an OEM replacement that is specifically designed for your refrigerator model. However, third-party sellers, like those offering HDX brand filters, can provide more economical options. It depends on whether you prioritize exact compatibility and assurance from the manufacturer or cost savings.

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