6 Best Inground Pool Filter Systems For Sale Online

Do you have an in-ground swimming pool?

Do you find yourself struggling with dirty water week after week no matter what you try?

Are you ready to upgrade your in-ground pool filter to something a lot more powerful?

If so, you’ve come to the right place! In this article, you’ll learn all about the best filter for inground pool setups on the market today. You’ll be able to look through the top six choices and find the filter that best suits your specific needs.

Whether you’re looking for the best cartridge filter for inground pool use, the best sand filter, or the best DE filter, you’ll be able to find it here. And once you’ve looked through these reviews, you can check out our bonus section at the end of the article. This section explains the most common water problems faced by in-ground pool owners and how your filter can make a difference.

So, if you’re ready to discover the best inground pool filter for your swimming pool, let’s get started!


Hayward S244T ProSeries Sand Filter, 24-Inch, Top-Mount
Hayward C1200 SwimClear Plus Cartridge Pool Filter, 120 Square Foot
Hayward DE7220 ProGrid D.E. Pool Filter, 72 Square Foot, Vertical Grid
Hayward EC75A Perflex Pool Filter
456 Reviews
422 Reviews
351 Reviews
549 Reviews
Hayward S244T ProSeries Sand Filter, 24-Inch, Top-Mount
456 Reviews
Hayward C1200 SwimClear Plus Cartridge Pool Filter, 120 Square Foot
422 Reviews
Hayward DE7220 ProGrid D.E. Pool Filter, 72 Square Foot, Vertical Grid
351 Reviews
Hayward EC75A Perflex Pool Filter
549 Reviews

Last update on 2019-03-21 at 01:05 Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.

In-Ground Pool Filters vs Above-Ground Pool Filters

If you’ve had an above-ground swimming pool in the past, chances are good you know a little bit about pool filters. Unfortunately, even if you’re very well-versed in the needs of an above-ground pool, you might find that in-ground filters are quite different. There are a few major differences you need to keep in mind when choosing your in-ground pool filter. Below, we’ll outline those briefly so you have some idea of what you’re looking for when you go shopping.

filter for inground pool
  • You probably can’t use an above-ground filter or pump on an in-ground pool. You might be able to get away with it as long as your pool is incredibly small, but for the most part, you’re probably looking at an upgrade. If your pump and filter working together can provide you with a water turnover rate of about 8 hours, it should be fine to use it.
  • Bigger pools need bigger filters. This probably goes without saying, but if you choose a filter that’s too small for your pool, you’ll never have clean water. Sometimes, if you use your pool very frequently or have very hard water, even choosing a filter that perfectly matches the size of your pool won’t work. In this case, you’re better off going for something larger or with a much more powerful flow rate than you might ordinarily choose.
  • You must choose a filter and pump setup with the right amount of flow. This doesn’t only have to do with the amount of water in your pool, but it’s also affected by suction, by the number of pipes present in your pool, and many other factors. Without a high enough flow rate, you’ll never be able to achieve crystal clear water in your pool.
  • Sand, cartridge and DE filters are all equally good choices for an in-ground pool. The choice you make ultimately depends on the way you use your pool and the frequency with which you plan to clean your filter. If you’re looking a filter that doesn’t need a monthly cleaning, you probably should stick with a cartridge option. However, if you want something that can be cleaned monthly and not need any replacement media for years at a time, sand or DE may be a better choice for you.
  • When it comes down to it, as long as you choose a filter that sits below the water level in your in-ground pool and is large enough and powerful enough for the volume of water you have, you should be fine. If you’re concerned about filtration power, always choose a size up in any type of pool filter. Just be sure that, if you do this, your pump can handle the increased load.

In-Ground Pool Filters

inground pool filter

Depending on the type of in-ground pool you have and the frequency with which you use it, you might want to choose between cartridge filters, sand filters, and DE filters. The right type of filter for your needs depends largely on the way in which your pool is used. Just be sure to choose a filter that is designed for use with an in-ground pool, and make sure to select one that’s large enough to help you maintain your pool water properly. In the sections below, you’ll find a few different options in each category to help you discover the best pool filter for inground pool use no matter how you use your pool.

Cartridge Filters

Cartridge filters are the most common type of inground swimming pool filters on the market. They include paper or fabric cylindrical cartridges that are placed inside the filter housing unit. Water is pushed through these filters and contaminants are caught on the fabric or paper. These filters are generally a little less powerful than other types of filters, and they’re best used for pools that don’t operate all year long or aren’t used too frequently throughout the season. They require light cleaning once a month and heavy cleaning every few months.

1. Hayward C1200 Star-Clear Plus 120-Square-Foot Pool Filter

Hayward C1200 SwimClear Plus Cartridge Pool Filter, 120 Square Foot

The Hayward C1200 Star-Clear Plus 120-Square-Foot Pool Filter is one of the most popular in ground pool filter options you can find. This great little filter gives you everything you need to get started with tons more in-ground pool filtration than you can expect from other brands and similar products. This is an easy-to-use product that can be opened, cleaned, and changed quickly without a lot of hassle. Best of all, it’s strong enough to stand up to years of use without taking any damage, even outside in the weather.



  • Very easy to clean and replace the single cartridge filter inside in a matter of just a couple of hours.
  • Works well with just about any pump you might have installed in your pool.
  • Capable of filtering water almost as cleanly as a DE filter.
  • Rubber o-ring seal may stretch out and need to be replaced after several cleanings.
  • Included pressure gauge has been known to arrive broken and damaged from shipping.
  • Doesn’t include a valve on the bottom to assist with draining, and instead only comes with a plug.

2. Hayward C7030 725 Square Feet SwimClear Reusable Cartridge Filter

Hayward C7030 SwimClear Cartridge Pool Filter, 700 Square Foot

When it comes to cartridge filters for in-ground swimming pools, the Hayward C7030 725 Square Feet SwimClear Reusable Cartridge Filter is the top of the line. When you want to give your pool the most incredible filtration you can experience from a cartridge filter, this is definitely the way to go. This powerful filter is large enough to handle even the most frequently-used swimming pool but simple enough that even a pool owner who’s never handled a filter like this before should be able to learn it in no time. Install it quickly and easily and get ready for cleaner water than you could ever imagine!



  • This filter system doesn’t require any backwashing and can be cleaned and replaced in just a few short hours.
  • Comes with all the required pieces needed to install it to your existing pool and pump.
  • Sure to improve the flow rate of your water and pump almost immediately.
  • The included manifolds inside the filter have been known to break frequently with a lot of use.
  • This is a very expensive filter with expensive replacement cartridges, so it is an investment.
  • Pieces such as the pressure gauge have been known to arrive damaged during transit.

Sand Filters

Sand filters are filled with pool sand or a comparable alternative filter media. Water is pumped through the sand, which grabs contamination particles and cleans up the water perfectly before it enters your pool. These are mid-range filters in terms of power, and they can be great for bigger families who use their pools more frequently. They’re also good for hard water since the buildup doesn’t affect the sand as much as other types of filters. These filters must be backwashed every month for proper filtration.

3. Hayward S244 Pro-Series 24” In-Ground Sand Pool Filter

Hayward S244T ProSeries Sand Filter, 24-Inch, Top-Mount

The Hayward S244 Pro-Series 24” In-Ground Sand Pool Filter is an excellent way to bring the convenience of sand filtration to your swimming pool. This filter is small but very sturdy, and it’s easy to install as part of your pool setup whether you’ve had experience with pool filter installation or not. It features a large drain that makes it easy for you to flush, backwash, and clean the filter as needed, and it comes in a few different sizes if the 24” inch isn’t quite what you’re looking for. This is one of the best sand filter for inground pool options around.



  • Designed to last for many years without the need for complicated cleaning and replacement.
  • Takes almost no time to clean up even the murkiest of swimming pool water.
  • Very easy to install, especially with the helpful customer service available from Hayward.
  • In some rare instances, the seam where the tank is held together has been known to leak very quickly.
  • Requires a lot of pool sand or pool sand alternative to fill up this filter.
  • If your pool is very dirty on installation, it may take a couple of days to completely clean it up for swimming.

4. Hayward S310T2 Pro-Series Top Mount Pool Sand Filter

Hayward S310T2 ProSeries Sand Filter, 30-Inch, Top-Mount

Are you searching for one of inground pool sand filters on the market today? If so, look no further than the Hayward S310T2 Pro-Series Top Mount Pool Sand Filter. This filter is very powerful and sturdy, and it’s built to stand up to even the toughest of inclement weather without so much as a scratch. The base and filter tank are molded together to make it easier than ever for you to place and install this filter without having to worry about choosing the wrong location for it. Best of all, since it comes from a well-known and respected brand, you know you’ll be getting a great product with this filter in your yard.



  • Works great with just about any pump as well as any saltwater generator you might plan to use.
  • Very easy to install and backwash yourself even with no prior pool filter experience.
  • Excellent sand filter for inground pool use for anyone needing a more powerful filter for a frequently-used pool.
  • This is one of the more expensive filters on the market today and may be over budget for some buyers.
  • Requires five hundred pounds of sand to fill the filter, which is another expensive investment.
  • Has been known to have trouble keeping the right pressure even with the right amount of sand in place.

DE Filters

DE filters are filled with diatomaceous earth or an alternative to this product. The earth works as the filter media as it attaches to fabric or paper grids inside the filter. These are the most powerful filters on the market today. They are great for swimming pools that are used almost every day, pools where large families and even pets swim often, and pools that are in operation all year long in warmer climates. These filters must be backwashed once a month like sand filters.

5. Hayward EC75A Perflex Pool Filter

Hayward EC75A Perflex Pool Filter

The Hayward EC75A Perflex Pool Filter is a DE filter designed with the environment in mind. Many people tend to be worried about the effects of dumping DE filter media into the environment, but with the flex-tube filter that comes included as part of this system, you can reuse your DE many times without having to worry about dumping it. You’ll be doing your part to improve the quality of the environment around you all while enjoying excellent, perfectly filtered swimming pool water all summer long.



  • Small, lightweight, and easy to handle whether you have pool filter experience or not.
  • Includes a handle that allows you to shake the filter to help properly coat the manifolds inside the filter.
  • Comes with the necessary valves for proper use right out of the box.
  • Doesn’t come with all the hoses you need for proper installation.
  • Has been known to clog up more frequently than other types of pool filters listed here.
  • Has been known to develop cracks along the seam lines, especially with too much pressure building up inside the tank.

6. Hayward DE7220 ProGrid 72 Square Foot Vertical Grid DE Pool Filter

Hayward DE7220 ProGrid D.E. Pool Filter, 72 Square Foot, Vertical Grid

When you’re looking for the epitome of incredible pool filtration, you need the Hayward DE7220 ProGrid 72 Square Foot Vertical Grid DE Pool Filter as part of your regular swimming pool setup. This pool filter comes with everything you need to get started, and it’s made by one of the best-known brands in the industry. With a ton of power behind it and a design that’s sure to last you for many years to come, you can’t go wrong with this filter. Best of all, since it’s a very high capacity filter with a lot of durability to back it up, one of the best DE filter for inground pool choices available for even the largest and most frequently used pools on the block.



  • Capable of cleaning a dirty pool within 24 hours of installation.
  • Built of durable filter housing materials and with better quality production than many other filters on the market today.
  • Great for commercial pools, so it’s an excellent choice for very busy backyard pools as well.
  • This is a very expensive product that requires a lot of DE to operate, making it a pricey endeavor.
  • Air has been known to escape from the valve after frequent use.
  • The backwash valve is not included with this product and must be purchased separately, despite the high initial cost.

5 Common Water Issues with In-Ground Pools

 swimming pool filters

In-ground pools have their own set of problem that differs a little from the problems you might encounter with an above-ground or pop-up pool. One of the biggest reasons why these problems are so different is because these pools are generally made of or surrounded by concrete. Being set into the ground makes the pool’s response to the environment a little different than it would be while the water is held on top of the ground. Check out this list of the five most common water issues you can expect to face with your pool and how having the right filter can help.

1. Water level.

Many times, pool owners have trouble keeping the right water levels up in their in-ground pools. This is a problem that above-ground pools don’t really face. There are a lot of ways to combat this, and there are many parts involved in the process other than just the filter. However, a filter and pump system that can move your water quickly throughout the whole filtration process is a great way to get started.

2. Cloudy water.

ground pool filter

Cloudy water is usually a sign that your water just isn’t getting filtered enough. There could be many contaminants that lead to the presence of cloudiness in your water. They may range from something as simple as hard water buildup to minerals and contaminants you didn’t even know were present in your water supply. When you have the right size and type of filter in place, you don’t have to worry about this happening. If your water starts to look cloudy, all you need to do is clean your filter media and potentially replace it, depending on the type of filter you have.

3. Brown water.

Brown water is usually a sign that there’s too much iron in your water. This may come from rust in your pipes or somewhere else along the way, but it might also come from the water itself. This is also a sign that you need a more powerful filter and one that can handle rust buildup. Sand and DE filters are the best options when it comes to dealing with brown, rusty pool water.

4. Green water.

Green water almost always means you have an algae problem. This has to do with the pH balance of your pool, which you can partially handle with pool treatment chemicals. Your filter does the rest of the work, so be sure you have a durable one that can hold up to a lot of cycling to get this problem cleared up.

5. Sand in the water.

filter for inground pool

If you have a sand filter, you may end up with sand washing into your pool water. This commonly means it’s time to replace the sand in your filter—not that you need a new filter altogether! If you notice this happening often, you may need a larger and more powerful filter. Your sand may be washing back into the pool because the buildup of contaminants is taking place too quickly in your filter.

When it comes down to it, choosing the right type of filter for your pool can save you a lot of hassle and trouble in the long run. Even though the initial investment may be a bit on the pricey side in some cases, you can save a lot of money by not having to worry about fighting terrible pool water problems over and over again with the right filter in place.


As you can see, there are a lot of options when it comes to choosing the right pool filter to suit your in-ground pool’s needs. Having an in-ground pool is a much different experience than having an above-ground pool, and it’s certainly very different than having a popup pool as well. When you dedicate that much time, space, effort, and money to your swimming pool, it makes sense that you’d want to have the best quality filter on the market to help you make the most of your investment.

But which type of filter is really the best option for your pool? If you’re looking for the best filtration money can buy, you can’t go wrong with a DE filter. Although these filters are generally much more expensive than cartridge or sand filters, they get the job done and then some. And if you’re worried about the environment, you can always choose an alternative to DE to use for your filter media instead.

No matter which type of filter you choose to go with, pick one of these six for the best experience on the market today!