SKU: 5939695589

PENTAIR EC90 D.E REPLACEMENT 30 SQFT - C-9990

$86.70 $96.33
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Description

PENTAIR EC90 D.E REPLACEMENT 30 SQFT - C-9990The Pentair EC90 D. E. Replacement 30 SqFt (Unicel C 9990) delivers the superior filtration performance pool contractors demand for professional installations. This high quality Reemay cartridge is specifically designed for the Pentair EasyClean D. E. Filter EC90, providing maximum dirt holding capacity and chemical resistance that keeps commercial pools crystal clear. Professional Installation Benefits Built with 8 oz. Reemay material and featuring a

The Pentair EC90 D.E. Replacement 30 SqFt (Unicel C-9990) delivers the superior filtration performance pool contractors demand for professional installations. This high-quality Reemay cartridge is specifically designed for the Pentair EasyClean D.E. Filter EC90, providing maximum dirt-holding capacity and chemical resistance that keeps commercial pools crystal clear.

Professional Installation Benefits

Built with 8 oz. Reemay material and featuring a no center core design with four bands, this replacement cartridge maximizes filtration efficiency while reducing maintenance frequency. The durable construction resists chemical damage and extends service life, reducing callback visits and protecting your service reputation with commercial clients.

Why Pool Contractors Choose MT Pools

MT Pools understands the demands of professional pool service and construction. Our wholesale pricing structure supports your profit margins while our reliable inventory ensures you have the replacement parts needed to keep client pools operational. With superior customer service and daily recurring customer support, we're your trusted B2B partner.

Frequently Asked Questions

How often should the C-9990 cartridge be replaced?

For commercial applications, replace the C-9990 cartridge every 12-18 months depending on bather load and water conditions. Regular replacement ensures optimal 90 GPM flow rate performance.

Is the C-9990 compatible with other D.E. filter brands?

The C-9990 is specifically designed for Pentair EasyClean EC90 filters. Using the correct replacement ensures proper fit and maintains warranty coverage for professional installations.

What D.E. powder amount is required with this cartridge?

The EC90 system with C-9990 cartridge requires 2.4 lbs of D.E. powder for optimal filtration performance and maximum dirt-holding capacity.

Does MT Pools offer bulk pricing for service companies?

Yes, MT Pools provides competitive wholesale pricing for pool service companies and contractors, with bulk discounts available for larger orders to support your business growth.

Order Your Replacement Cartridges Today

Keep your commercial pool filtration systems running at peak performance. Stock up on genuine Pentair EC90 replacement cartridges and experience the MT Pools difference in B2B service and support.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 5939695589

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Karol D.
Chelsea, US
★★★★★ 5
It’s practical, user-friendly, and tailored for law enforcement needs.
Format: Paperback
This book has been an absolute gem as I prepare to apply for a law enforcement job where Spanish is a required skill. It’s well-organized, easy to follow, and covers practical vocabulary and phrases that are directly relevant to real-world scenarios. Not only is it incredibly useful, but it’s also engaging and fun to use, making learning feel less like a chore. The structure allows me to focus on the most important phrases for law enforcement situations, and it’s already helping me feel more confident about communicating effectively in Spanish.
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Reviewed in the United States on January 3, 2025
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Licinia Ferreira
West Palm Beach, US
★★★★★ 5
Easy to learn
Format: Paperback
Easy format and provides a lot of useful word/phrases
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Reviewed in the United States on May 20, 2025
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Alexandra VanDrie
Louisville, US
★★★★★ 5
Focused and Relevant
Format: Paperback, Format: Paperback
I’m new to learning Spanish. I’ve been at it for only about 9 months, but I chose to learn it for my job as a 911 dispatcher. This book was recommended to me by my Spanish tutor who has a family member that is a cop. This book contains SO many job relevant words, phrases, and cultural tips that I am learning a ton! And the book breaks things down by type. For example, the “traffic” chapter is a little less relevant to me as a dispatcher because I won’t be doing traffic stops or field sobriety tests. But there are also sections dotted throughout the book that are very relevant to dispatcher phone interrogation. Very pleased with this book, now they just need to write one specifically FOR dispatch. :D
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Reviewed in the United States on May 18, 2020
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Kevin
Omaha, US
★★★★★ 4
Bigger book than I though but great information
Format: Paperback
Great book to learn a little Spanish. I wished it was smaller though.
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Reviewed in the United States on March 10, 2025
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Fabricio
Belleville, US
★★★★★ 5
A must for Spanish Speaking Officers.
Format: Paperback
I sought out this book because I did not feel comfortable speaking Spanish in a law enforcement context. This booked greatly improved my Spanish and allowed me to bolster my proficiency. If you are a Spanish Speaking officer, please get this book.
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Reviewed in the United States on May 3, 2023

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