how much is an inground pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer

How Much Is an In-ground Pool Filter?

In-ground pools are a popular addition to many homes, and they require regular maintenance to keep them clean and healthy. One of the most important components of any in-ground pool system is the pool filter. There are several types of in-ground pool filters available, each with its advantages and disadvantages. In this article, we will discuss the different types of pool filters, their costs, and factors to consider when choosing a pool filter for your in-ground pool.

Types of In-ground Pool Filters

1. Sand Filters

Sand filters are the most common types of pool filters used in in-ground pools. They work by pushing pool water through a tank filled with sand particles. The particles trap debris and other contaminants, and the clean water is returned to the pool. Sand filters are reliable and cost-effective, but they require regular backwashing to remove debris from the sand particles.

2. Cartridge Filters

Cartridge filters are another popular type of pool filter. They work by trapping larger debris and contaminants on a pleated cartridge filter. Unlike sand filters, cartridge filters do not require backwashing and can be easily cleaned by hosing down the cartridge. They are more expensive than sand filters, but they are more efficient and require less maintenance.

3. Diatomaceous Earth (DE) Filters

Diatomaceous Earth (DE) filters are the most efficient type of pool filter, capable of removing the smallest particles from pool water. DE filters use a porous powder made from fossilized diatoms to trap debris and other contaminants. Like sand filters, they require periodic backwashing to remove debris, and the DE powder should be replaced several times per year. DE filters are the most expensive type of pool filter but offer superior filtration.

Pool Filter Costs

The cost of an in-ground pool filter can vary widely based on the type of filter and the size of your pool. On average, a sand filter can cost between $200 and $800, while a cartridge filter can cost between $400 and $1,200. A DE filter can cost anywhere from $700 to $1,500. In addition to the cost of the filter itself, there may be additional costs for installation and any necessary plumbing modifications.

Factors to Consider When Choosing an In-ground Pool Filter

1. Pool Size

The size of your pool is a crucial factor to consider when choosing a pool filter. Larger pools require more powerful filters, and smaller pools can benefit from less expensive filters. Be sure to choose a filter that is sized appropriately for your pool.

2. Desired Water Clarity

If you want crystal clear water in your in-ground pool, a DE filter may be the best option. But if you don't mind slightly cloudy water, a sand or cartridge filter may be sufficient.

3. Maintenance Requirements

Different types of pool filters require different levels of maintenance. Sand filters need frequent backwashing, while cartridge filters require periodic cleaning. DE filters require regular backwashing and DE powder replacement. Consider the level of maintenance required when choosing a pool filter that works best for you.

4. Budget

Your budget is an essential factor when choosing an in-ground pool filter. Sand filters are the most cost-effective option, while DE filters are the most expensive. Determine your budget and choose a filter that meets your needs and fits your budget.

5. Local Regulations

Some areas have specific regulations regarding pool filters. Before purchasing a pool filter, be sure to check with your local health department or pool service professional to ensure that your chosen filter meets any local requirements.


In-ground pool filters are a crucial component of any pool system, keeping pool water clean and healthy. When choosing a pool filter, consider factors like pool size, desired water clarity, maintenance requirements, budget, and local regulations. Whether you choose a sand, cartridge, or DE filter, investing in a high-quality filter will ensure that your in-ground pool remains clean and enjoyable for years to come.


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