Skip to main content
Shop by pool or need Shop by
Brands and series
Popular models and advice
Help me choose

Our tested shortlist for inground, above-ground, cordless and small pools, with what each robot does and does not include.

Find my robot

Free Shipping, 30-day trial and a low price guarantee on every robot. Talk to a Pool Pro

Pump types
Shop by horsepower
Shop by brand
Help choosing

Free Shipping and a low price guarantee on every pump. Need help sizing a pump?

Shop water monitors
Choose your ICO

Hourly water readings and personalized guidance in the ICO app, with no subscription required. Ask a Pool Pro

Ultraviolet systems
SpectraLight models
Parts and help

UV systems are sized to your pump's flow rate. Talk to a Pool Pro before you order.

Filters
Heaters
Lights
More departments

Can't find a part? We can usually source any pool or spa product.

Calculate
Compare equipment
Find products

Free tools for choosing and running pool equipment. See all tools or ask a Pool Pro.

Buying guides
ProLine and Max-Series reviews
From the review to the robot

Reviews are written by our in-house pool professionals from hands-on testing. How we test

Pentair Pool Filters

Pentair pool filters are highly efficient, and are designed to thoroughly remove impurities like dirt, leaves, grass, hair, body oils, sunscreen, and several types of bacteria from the water. Swimming pool filters from Pentair are available in three different types: Cartridge, Diatomaceous Earth (DE) filters, and sand filters. Pentair provides filter models from each category to fit both above ground and inground swimming pools.Cartridge swimming pool filters from Pentair are… Read more
Pentair pool filters are highly efficient, and are designed to thoroughly remove impurities like dirt, leaves, grass, hair, body oils, sunscreen, and several types of bacteria from the water. Swimming pool filters from Pentair are available in three different types: Cartridge, Diatomaceous Earth (DE) filters, and sand filters. Pentair provides filter models from each category to fit both above ground and inground swimming pools.Cartridge swimming pool filters from Pentair are basic, cost effective and easy to maintain. Pentair's cartridge filters have a design with proven effectiveness that strip particles from pool water with ease. These cartridge filters have a chemical-resistant tank and a colorless cartridge, so they're easy to clean. And as mentioned, the maintenance for this type of pool filter is fast: Open it, remove the cartridge, hose it off, and reinstall.

26 products

Compare products

Open full page

Why shop at Pool Express?

With free shipping, a 30-day trial, and low price guarantee, we're proud to be one of the largest online retailers of all the top pool brands.

Free Shipping

Free shipping on every order to the contiguous United States. Estimated delivery: 1–5 business days after you order.

30-Day Trial

Try it in your pool for 30 days. If it is not right for you, return it within 30 days of delivery for a full refund of the purchase price.

Low Price Guarantee

Find an identical, in-stock item advertised for less by an authorized U.S. dealer and we match the price before you buy.

Pool Pros on the phone

Talk to our in-house pool professionals before and after the sale: 512-961-3881, Monday–Friday, 8:00 am–5:30 pm Central Time.