Filter Cartridges

Replacement Pool Filter Cartridges & Grids

Keep your pool water crystal clear with our replacement pool filter cartridges and DE grids. Designed for easy installation with a variety of filter systems, our filter cartridges effectively capture dirt, debris, and contaminants, ensuring optimal water quality. Made from durable materials, they offer excellent filtration performance and longevity. Regularly changing your pool filter cartridges is essential for maintaining a healthy swimming environment and maximizing your filter's efficiency. Browse our selection to find the perfect replacement cartridges for your pool filter system, and enjoy a cleaner, more inviting swimming pool all season long.

Frequently Asked Questions about Replacement Filter Cartridges

When should I replace the filter cartridge in my pool filter?

Pool filter cartridges have no expiration date, so it’s important to know signs of a cartridge that needs to be replaced.

Let’s start with the bands. The cartridge does not need to be replaced at the first sign of a broken band. However, the bands will break down over time. If you see a significant amount of broken bands, look closely at the cartridge to ensure it is still in good condition. Those bands are specifically designed to ensure proper spacing between the pleats, so if they break, the filtering ability will be diminished.

Next, look at the coloration of the filter cartridge. It will never be as white as when you first installed it, but it should not have permanent dark stains. If it does, that means it is saturated with oils. You need to soak it in a cartridge cleaner to help pull those oils out. If you can't remove the oils with a cartridge cleaner solution, you may be time to replace the cartridge.

Now, look between the pleats. Make sure to check enough of them to get a good understanding of whether or not the material is starting to come apart. If the material is visibly degrading, you should replace the cartridge immediately.

The final sign that you need to replace the filter cartridge - the end caps are broken. Small stress cracks may not be a problem, but any actual breaks in the cap are a strong indicator that the pool filter cartridge needs to be replaced.

When should I clean my pool filter cartridge?

The simple answer? When the pressure on your gauge reaches 8-10 psi above the standard starting pressure, you should clean the filter.

For example, if you bought brand new replacement filter cartridges, and the first time you started the system the psi was 10, then you would need to clean that filter when the pressure reached around 18 psi. Other times you should clean your filter include:

• During an algae bloom treatment
• After major storms
• As part of pool opening or closing before the off-season

For more information, please see the video below for a step-by-step guide on how to clean a cartridge pool filter.

How to Clean a Pool Filter Cartridge | Video

Cleaning your filter cartridge is an important step in keeping your pool filter system clean and running strong. A dirty filter cartridge will prevent your pool filter from effectively trapping debris out of the water. Thankfully, cleaning your filter cartridge is a easy with tips from this helpful video!