Nitrous Express 4AN Pure-Flo N2O Filter & 7 Stainless Hose (Lifetime Cleanable)

Nitrous Express 4AN Pure-Flo N2O Filter & 7 Stainless Hose (Lifetime Cleanable)

Marsoni

M251S

$84.80

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

Nitrous Express 4AN Pure-Flo N2O Filter & 7 Stainless Hose (Lifetime Cleanable)The Pure Flo N2O Filter features a stone element filter that can be reused season after season. The Pure Flow N2O Filter housing is crafted of Aluminum with both 4AN size inlet and outlet fittings. The patented Pure Flow N2O Filter also features the same internal diameter of a 4AN line ensuring maximum flow and reliability. 7 in. 4AN Stainless Steel hose is included. Certificate of Origin Warranty

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We offer a 30-day return/exchange service after receiving.
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Inconsistency in size per other reviews. The site said XL was my suggested size.....I usually follow that advice. I went XXL this time and happy I did. The neck is a medium and the rest is maybe XL....it feels "fitted" too...not very loose. I will keep it as I like a snug neck---but this needs effort to pull over my head. Having said that, the material is soft and not too thick. Just beware of sizes.

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Reviewed in the United States on October 16, 2025

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R. Lesser

Chelsea, US

★★★★★ 5

Excellence

Size: X-Large, Color: Black

Excellent product, definitely will be buying more

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Reviewed in the United States on May 21, 2026

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Michael B.

West Palm Beach, US

★★★★★ 1

Not black and Runs small

Size: X-Large, Color: Black

I ordered black but it was more like charcoal gray. I ordered a XL and it fit like a Large at best. The fabric was very soft, so that was a positive. Very disappointed in the color and sizing. I reordered a 2XL and it also runs very small. It fit about the same as the XL did. It is a athletic fit. There is barely any size difference between an XL and a 2XL. Highly recommend to not waste your money on this shirt.

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Reviewed in the United States on November 13, 2025

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Betsy B

Houston, US

★★★★★ 5

Warm and comfy

Size: X-Large, Color: White

Very soft and warm. Runs small. I’d buy up a size. Washes well

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Reviewed in the United States on March 15, 2026

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