Waterway 2.5" Split Nut for DE Pool Filters — Part 400-5271B

Marsoni

M251S

$19.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Waterway 2.5" Split Nut for DE Pool Filters — Part 400-5271BThe Waterway 400 5271B 2. 5 Inch Split Nut is a premium OEM replacement part purpose built for fastening plumbing joints on Waterway DE filter assemblies. Crafted from robust, pool rated PVC, this component is engineered to deliver watertight connections even when subjected to chemically treated water and elevated system pressures. Found as a standard element in numerous Waterway DE filter setups, it features a straightforward installation process

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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After about 2 months of daily cleanings, the side brushes were looking a little ragged on my Eufy 12. The brushes included in this kit did come out a little bent, but as shown on the product page, when I dipped them in hot water they straightened right out. Intrigued, I decided to try that with the original brushes. They cam out looking like new! The only con is that the filters don't look like a perfect fit. The foam seems very minutely smaller than the original and the pleated filter seems slightly thicker.

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Reviewed in the United States on July 21, 2019

Verified Purchase

JoeInTampa

Houston, US

★★★★★ 5

All items fit the Eufy 30C perfectly.

Style: 19 Pack

We bought a Eufy 30C several months ago. After each time it is run, I clean the dust collection chamber, brush dust out of the filter and from the sponge-like pre-filter. After several uses, the filters simply were becoming clogged with tiny dust particles. This kit holds 10 filters and pre-filters, 8 brushes (or four sets) and one main roller brush. Every piece fits perfectly. They look and feel like original quality materials. This is a great set of replacement parts to keep your Eufy working like new.

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Reviewed in the United States on January 27, 2020

Verified Purchase

K. L. Bauer

Natrona Heights, US

★★★★★ 5

Great bags for Eufy at a reasonable price!

Size: C10 / C20 Bags

Fits my Eufy vacuum as well as the original bag. Such a nice find, a good bargain, not cheaply made either- we are on our 3rd bag from this package and they’re holding up fine just like the original manufacturer bags.

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Reviewed in the United States on January 21, 2026

Verified Purchase

Juan F.

Lexington, US

★★★★★ 5

Muy bueno

Tal como se describe

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Reviewed in the United States on May 3, 2026