K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H

K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H

Marsoni

M251S

$63.19

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

K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch HSKU: RE 0870 UPC: 024844009296 K&N RE 0870 Universal Clamp On Air Filter: 4in Flange 6in OD B 4 5 8in OD T 9in H K&N RE 0870 delivers high flow filtration for racing vehicles, radio controlled cars, generators, snowmobiles, tractors and custom intakes. Molded rubber flanges stretch up to 1 16 inch for secure clamp on fit regardless of intake angle or offset. Pre oiled cotton gauze media traps dirt while boosting airflow for more horsepower and

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Your K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H orders ship within 1-2 business days.

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Unfortunately I ended up being very disappointed with this purchase, after about two weeks of use, it just stopped performing. Not sure what happened but it just stopped releasing the ball and I don't know why, it had no flexibility left to it. I'm not doing a very good job of trying to explain why it quit working but suffice it to say, it became useless after a couple of weeks. Broke my neighbors dog's heart, lol.

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Reviewed in the United States on November 20, 2025