Waterway 550-4310 Crystal DE Filter Grid Support Assembly - 26

Waterway 550-4310 Crystal DE Filter Grid Support Assembly - 26" PVC Shaft, 48 sq. ft.

Marsoni

M251S

$49.99

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

Waterway 550-4310 Crystal DE Filter Grid Support Assembly - 26" PVC Shaft, 48 sq. ft.The OEM Waterway DE Grid Support Assembly serves as a critical structural backbone within the Crystal DE Filter system, featuring a sturdy 26 inch PVC shaft engineered to deliver peak performance for filters rated up to 48 square feet. Part number 550 4310 is precision manufactured to promote uniform distribution of diatomaceous earth across the filtration grid, which directly translates to clearer, cleaner pool water. This assembly is purpose built

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I use K&N on all vehicles that I have owned. It has always given extra MPGs and extra HPs. Always easy to install, easy to clean and maintain. if you keep your vehicle as long as I do (my last two vehicles, a 2001 Toyota Sienna lasted 18 years, and 2000 honda civic LX lasted 17 years), this filter pays for itself and more! definitely worth the price. I bought one now for my new Honda Civic EX hatchback which I will also drive until it breaks which could be 2 decades from now - imagine how much I will save on regular air filter purchases and extra mpgs. very well worth the price!

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Reviewed in the United States on February 26, 2023

Verified Purchase

Junebug

Carnegie, US

★★★★★ 5

Great product saves money.

Fits as it should

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Reviewed in the United States on May 21, 2026

Verified Purchase

Sarah

Battle Creek, US

★★★★★ 5

Best Air Filter EVER

I have used these in my cars for years. They improve turbo lag significantly, increase air flow, and just work. What I like best about these, beside the protection they offer the air intake system, is that they truly are a life long product. My last car had one in it for 13 years. With a cleaning every 25K miles as outlines by KN the air filter just continued to work and work. I recently purchased one for my new Honda CR-V and had it installed at the dealership at 500 miles when I was getting an oil change to flush out the build lube. The mechanic who did the work left me a note that said "great filter, I love these"

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Reviewed in the United States on July 13, 2019

Verified Purchase

Steve

Lexington, US

★★★★★ 4

Worth it! Love these filters.

I love K & N air filters and always install them in my cars. This eliminated my cars Turbo lag in my 2019 Honda Civic Ex which has a 1.5L Turbo. Acceleration has improved and makes the car louder (I also have dual exhaust) I love how you don't have to change or clean it for 50,000 miles!! I know it's expensive but will last forever! Only issue was it was very difficult to install and a pain but this is more Hondas fault as I could not fully remove the plastic case where this filter goes under the hood even with tools.

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Reviewed in the United States on November 23, 2019

Verified Purchase

R. A

Omaha, US

★★★★★ 5

Works great

Perfect fit

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Reviewed in the United States on August 7, 2025