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Buy Direct. Built in the USA. Best in Class Pool & Spa Replacement Filter Cartridges

You don't need much money to have the cleanest water, just the intelligence to invest in an Excel Filter.

5 Ways to Save

New customers get 5% off their first Excel Filters replacement filter cartridge purchase
New Customers

Welcome! Thanks for choosing Excel Filters. We'd like to give you 5% off your first purchase just for registering your email

Tell Excel why you switched, send a photo of your old photo and get an extra 5% off your first purchase
Upgrade to Excel

Save an additional 5% on your first purchase when you send us a photo of your old filter cartridge, tell us the brand (Excel Filter Cartridges excluded), how long you used it and why you're upgrading to an Excel Filter!

Excel Filters offers volume discounts on all replacement filter cartridge purchases
Buy Extra, Save More
2 filters 5% off
3 filters 10% off
4 filters 15% off
5+ filters 20% off
10+ filters 25% off
Pallets or Truckloads contact us
Tell Excel Filters how we could improve our service or our replacement filter cartridges and we'll enter you to win a full credit for your order
Say it Don't Spray It

After you receive and install your filter send us your order number and a suggestion to improve our products and we'll enter you into a monthly drawing for one customer to win a full credit – get your order for free!

Like Excel Filters on Facebook or write a review about our replacement filter cartridges for a chance to win a full credit on your next order
Like Us / Link Us

At the end of each month we'll randomly select one customer who's liked us on Facebook or written a review or to win full credit on their order!

Please Note: All items must be shipped same time to same address. Discounts not applied to shipping and any returns are refunded at the discounted price. Each 4-pack, 3-pack and Retrofit Kits is considered a single item

*Free ground shipping to 48 continental states. Orders under $75.00, shipping is a $4.95 flat-rate. Shipments to Alaska, Hawaii, Puerto Rico, US Virgin Islands or Canada are not eligible for the $4.95 flat-rate, actual shipping will be calculated at checkout.

How We Build the Best

Black Diamond™
Filter End Cap

  • Distinct black to easily recognize a quality Excel Filters replacement cartridge
  • Extreme strength and durability
  • Antibacterial for safety
Excel Filters Black Diamond™ End Caps are stronger and more easily distinguished from other brands.

Ultra-Efficient Filter Media

  • Cleaner Water = Healthier Life
    Choosing the best filtration media makes all the difference in your water quality
  • Optimal Flow Dynamics to reduce energy consumption
  • Professional Grade for efficiency, effectiveness and ease of cleaning during repeated use
Excel Filters Cleanguard™ Core Media provides the purest water and easy cleaning

Open Flow™
Ultra-Efficient Engineered Core

  • Optimal Flow Dynamics to reduce energy consumption and improve debris removal
  • Extreme Strength to prevent collapse during repeated use
  • Antibacterial for safety
Excel Filters Open Flow™ Core provides the sturdiest, long-lasting filter with maximum performance.

Filter Banding

  • Snug & Secure to keep pleats open for the most effective filtration
  • Extreme Strength to prevent collapse during repeated use
  • Antibacterial for safety

Why Buy Direct?

Excel Filters Replacement Filter Cartridges are the best quality at the lowest price

By selling directly to you Excel cuts out all the unnecessary costs. You get the highest quality replacement pool or spa filter at the best price.

Excel Filters Replacement Filter Cartridges are 100% manufactured in the USA

We manufacture all the filter cartridges we sell right here in the USA. Everything you buy comes directly from us.

Excel Filters wants to help you find the perfect replacement filter cartridges for your pool and spa

We stand behind all of our products. We're happy to help you find the right filter. Just call us or email us.😉

The Excel Filters Difference

Quality materials

Thoughtful engineering

USA manufacturing

Long useful life

Low lifetime operating costs

Optimal efficiency & effectiveness