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.
Filter Finder 
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What to Buy
| 4-Packs | 3-Packs |
| Excel Filters Easy Clean™ |
Excel Filters Clean Start™ |
| Excel Filters Retrofit Kit for System 3® | |
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High Value, Wide Selection, Fast Delivery and Free Ground Shipping on Orders over $75*
5 Ways to Save
New Customers
Welcome! Thanks for choosing Excel Filters. We'd like to give you 5% off your first purchase just for registering your email
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!
Buy a Spare and Save!
| Applies to purchase of same item | |
| 2 filters be smart, buy a spare |
5% off |
| 3+ filters the most smartest 🤓 |
10% off |
| Pallets or Truckloads | contact us |
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 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 |
| Cleanguard™ Ultra-Efficient Media |
| Open Flow™ Ultra-Efficient Engineered Core |
| Python™ Filter Banding |
Black Diamond™
Filter End Cap
- Distinct black to easily recognize a quality Excel Filters replacement cartridge
- Extreme strength and durability
- Antibacterial for safety
Cleanguard™
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
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
Python™
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?
Value
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.
Transparency
We manufacture all the filter cartridges we sell right here in the USA. Everything you buy comes directly from us.
The Excel Filters Difference
Quality materials
Thoughtful engineering
USA manufacturing
Long useful life
Low lifetime operating costs
Optimal efficiency & effectiveness