


In-line Regulator Step Down
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
In-line Regulator Step DownMany customers want to use the Avi with existing aircraft oxygen systems to increase endurance, but many of these OEM systems output between 70 100PSI. The Aithre Avi pulse demand systems require an input pressure of 50 60PSI, so plugging the AVI directly into this higher pressure source will break the AVI and will cause oxygen leakage. This Mountain High Aithre regulator will step down the pressure from your existing OEM oxygen system from 70 100 PSI
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Delivery Options:
- Standard: 3-7 business days
- 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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★★★★★ 5
Review
Color: Olive Green, Size: XX-Large
Nice outfit.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Good
Color: White, Size: X-Large
Very comfortable my husband love it. Good fit, its a not sheeer, very soft.quality good for your money
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Reviewed in the United States on October 24, 2025
★★★★★ 5
Very pleased with this item.
Color: White, Size: Large
Sturdier material than I expected, but still cool and comfortable. Excellent fit. Not baggy at all. Just a comfortable, relaxed fit.
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Reviewed in the United States on August 19, 2025
★★★★★ 5
Mens outfit
Color: Khaki, Size: XX-Large
My husband really likes them
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Reviewed in the United States on May 4, 2026
★★★★★ 4
Great for hot weather.
Color: White, Size: X-Large
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