


K&N Marine 3.75in Flange ID x 3.75in Top OD/4.5in Base OD x 4in H Round Tapered Flame Arrestor
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Marine 3.75in Flange ID x 3.75in Top OD/4.5in Base OD x 4in H Round Tapered Flame ArrestorThe K&N Flame Arrestor makes the best air filtration technology available for marine engine use. Marine application owners can experience the increased horsepower and engine protection provided by K&N's oiled cotton gauze and epoxied screen filter element. For high performance on the water, K&N Flame Arrestors will help you fly.
Quick Dispatch:
Your K&N Marine 3.75in Flange ID x 3.75in Top OD/4.5in Base OD x 4in H Round Tapered Flame Arrestor orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your K&N Marine 3.75in Flange ID x 3.75in Top OD/4.5in Base OD x 4in H Round Tapered Flame Arrestor ships.
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Real comfort.
Size: Large, Color: (001) Black / Black / Pitch Gray
Second purchase. Good workout sock.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Very nice
Size: Large, Color: (100) White / White / Pitch Gray
I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.
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Reviewed in the United States on December 26, 2025
★★★★★ 5
MY FAVORITE SOCKS
Size: Large, Color: (001) Black / Black / Pitch Gray
I bought these originally at my local UA store and had to buy more. They are my favorite daily wear.
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Reviewed in the United States on February 25, 2026
★★★★★ 4
A sock with real support and thickness!
Size: Large, Color: (001) Black / Black / Pitch Gray
I’m pretty happy with these. It seems like sock manufacturing changed 10-15 years ago, and it’s become hard to find pairs that are actually thick and durable. I bought these for an event where I knew I’d be on my feet all day, and they did not disappoint.
They provided excellent support throughout the day, even while wearing shoes that typically make my feet ache after just a couple of hours. Glad to finally find a pair that feels well-made.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Great socks
Size: Large, Color: (001) Black / Black / Pitch Gray
Love the quality of this great product very comfortable and fits really good
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Reviewed in the United States on July 31, 2025