K&N Universal Clamp-On Air Filter 3in FLG / 5in B / 4-1/2in T / 5in H

K&N Universal Clamp-On Air Filter 3in FLG / 5in B / 4-1/2in T / 5in H

Marsoni

M251S

$63.19

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

K&N Universal Clamp-On Air Filter 3in FLG / 5in B / 4-1/2in T / 5in HSKU: RU 3870 UPC: 024844373663 K&N Universal Clamp On Air Filter 3in FLG 5in B 4 1 2in T 5in H K&N RU 3870 universal clamp on air filter delivers high airflow for racing vehicles radio controlled cars generators snowmobiles tractors ATVs and more. Flexible 3 inch centered flange stretches up to 1 16 inch with 5 inch base 4. 5 inch tapered top and 5 inch height fits any intake angle or offset. Pre oiled cotton gauze media traps dirt while increasing

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We offer a 30-day return/exchange service after receiving.
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This product is absolute garbage! It literally took all day to put it together and if the air conditioning blows on it the wrong way than the whole thing top over and it falls apart. It’s not made of quality material and is very flimsy. The only reason I’m not returning it is because it’s too difficult to put together and I don’t wanna spend that much time trying to take it apart. Do not buy this!

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Reviewed in the United States on September 25, 2025

Verified Purchase

Natasha Spencer

New York, US

★★★★★ 3

Cheap

Size: 6FT*6FT, Color: Black

They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed

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Reviewed in the United States on April 18, 2026

Verified Purchase

Chris Stockbridge

Massapequa, US

★★★★★ 5

Worth the investment

Size: 1 Panel, Size: 1 Panel

I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.

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Reviewed in the United States on February 19, 2026

Verified Purchase

Interloper

Chelsea, US

★★★★★ 1

You Get What You Pay For! A Piece Of Junk!

Size: 1 Panel

Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.

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Reviewed in the United States on February 25, 2026