SKU: 5939695589

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

$86.70 $96.33
Save 10%
No.2 Bestseller on pluriversity.net >

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 2373 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
C. Clark
Boise, US
★★★★★ 4
I just wish it wasn't vacuum packed.
Size: Large, Color: Black Light Brown
If the shirt wasn't vacuum packed to introduce bad creases/wrinkles, this would be a 5 star review. For the price, this is a nice and comfortable shirt. The thickness is really good for a polyester/spandex blend shirt; it's the right thickness for a summer shirt (because polyester doesn't breath at all). The rather small amount of spandex makes it just stretchy enough to give when moving. It wears a little like a fitted shirt, but it's not too tight at all for a bigger guys. It's not a loose fitting shirt, but it still feels like the correct size (my size was large). Note: This does have a bit of a V-Neck style, there's no button for the neck and the highest button is lower than most shirts. Unless you've a good iron with a steam feature, you're going to have a hard time safely getting rid of the wrinkles/creases from the vacuum packaging. This is a delicate fabric blend and high temperatures will permanently ruin it. I tried to quick wash and low temp dry in a machine with no results. Using a good iron on delicates/synthetics heat setting wasn't quite hot enough to undo the creases. Several steam blasts did wonders, but this was a time consuming process. You might get away using a drying machine at a higher heat for a short burst, but it's a risk. The stitching is good for the panels and arms. The different colors are different pieces of materials and not just dyes. The stitching at the bottom of the shirt, however, is jagged; not terrible, but it's a blemish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
N
Verified Purchase
Nancy Y
Waukegan, US
★★★★★ 5
Vintage shirt goes great with vintage cars!
Size: Large, Color: Black Dark Gray
Loved it for my husband, we have vintage cars. It’s the perfect look, but I bought him 3 from this company and he chose 2 out of the three. Great shirts
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
E
Verified Purchase
Edward K
Dallas, US
★★★★★ 5
excellent shirt
Size: Large, Color: Black White
perfect fit , it's a slim fit go get one size larger .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
A
Verified Purchase
Aaron Samuel
Los Angeles, US
★★★★★ 3
Nice product but size is not as expected
Size: 3X-Large, Color: Green White
This shirt is really nice and really stands out only downside is the size isn't as expected. I usually wear a 2xl and decided to go with a 3xl and it was still a bit too fitted for me liking..Disappointed I couldnt use it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2025
Y
Verified Purchase
yo
Lexington, US
★★★★★ 5
My husband bought 5!!!
Size: X-Large, Color: Black Dark Gray
Good fit and color combos. Size L was accurate using chart. Washed cold/delicate, air fluffed in dryer turned out good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026

recommand products

3LP - Joe Henderson - Consonance: Live at the Jazz Showcase
119.99
LP - Son Volt - Sound Signal Serenades
32.99
CD - Mal Waldron - Stardust & Starlight: Live at the Jazz Showcase
34.99
USED CD - Streets – 1st
12.00
USED 2-SACD - The Who – Tommy
20.00