SKU: 5939695589

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

Sale price$86.70 Regular price$96.33
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5939695589

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4.5 ★★★★★
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K
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Kayla B
Lowell, US
★★★★★ 5
Have size 4 🙌🏻 qreat quality, comfy, cute
Size: 4 Toddler, Color: Brown, Size: 4 Toddler, Color: Brown
Durabilty 💯 survived a beach trip on a 2 year olds feet and still look brand new! Guessing they are comfy, because she never acted or said otherwise. Definitely worth what we paid. Super cute, good quality, but could still spray out sand with no issues and let her run around and do all the toddler things. The brown is the perfect brown, it changes shades in different lighting and is not too light or dark. Good, cute and comfy sandal! Our girl has eczema and this material rubbing on her ankles didn't bother her as much as some sandals, so, tolerable on sensitive skin 👍🏻 also, the straps were a perfect angle and length for her petite ankle, other brands have to bend and rub her ankle. Lastly, the size seems true to normal toddler shoe sizes. They fit very similar to other of her sandals in the same size. Which reminds me, grateful to find a size 4 for our small feet girly 🙌🏻 not many options.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2025
S
Verified Purchase
SWJW2002
Los Angeles, US
★★★★★ 5
Super cute, comfy sandals!
Size: 9 Toddler, Color: Brown, Size: 9 Toddler, Color: Brown
Great sandals! My daughter is very picky about shoes and had zero complaints about these! They are super cute too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
D
Verified Purchase
DMarie
Charlottesville, US
★★★★★ 5
Adorable.
Size: 6 Toddler, Color: Gold
Great for summer. Looks good with everything.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
K
Verified Purchase
K.beauty
Whiting, US
★★★★★ 5
Really neat
Size: 8 Toddler, Color: Brown
They are sturdy and non skup and I'm happy about that. They fit well and the straps had no problems. Very easy to put on and take off. They are quality for the price as well and I love the style very much . I recommend
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Reviewed in the United States on January 17, 2025
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Amazon Customer
Omaha, US
★★★★★ 4
They are very quality
Size: 11 Little Kid, Color: Gold, Size: 11 Little Kid, Color: Gold
My daughter loved the sandals. They look good on her feet. She has a narrow foot so they fit her just fine. I gave four stars because she wears a size 10 shoe now and I ordered an 11 thinking that she would be able to grow into them. As you can see from the pictures, they fit her perfectly. Everyone has one foot that is bigger than the other, so her bigger foot is hanging off the back. I purchased these for her summer sandals now I’ll have to buy her some more because these will not last through the summer.
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Reviewed in the United States on May 14, 2025

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