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Marshall Excelsior 3" FNPT x 3" MNPT Back Pressure Check Valve with Bonded Soft Seat

Marsoni M251S
Sale price$502.20
Pay 4 payments of $125.55 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Marshall Excelsior 3" FNPT x 3" MNPT Back Pressure Check Valve with Bonded Soft SeatThe Marshall Excelsior ME870SBN 24 Back Pressure Check Valve is designed for high flow transport applications, ensuring reliable performance and safety. This valve features a bonded soft seat and is rated for both LP Gas and NH3. It offers a flow control of up to 449 gallons per minute (GPM) of liquid propane at a 10 PSIG pressure differential. Key Features: Inlet: 3" FNPT Outlet: 3" MNPT Flow Rate: 449 GPM (1,699 L min) for Liquid Propane at 10 PSIG
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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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4.4 ★★★★★
Based on 1732 reviews
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K
Verified Purchase
K Mussat
Los Angeles, US
★★★★★ 5
Work Great
Color: gray
Works well in my car good quality and the cost is not bad compared to the other brands. Easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
A
Verified Purchase
ArcTuba
Port Orchard, US
★★★★★ 5
Dealer wanted $200, Changed them in 5 min
Color: gray
Good quality, saved a lot of money over having a dealer or mechanic change them.
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Reviewed in the United States on May 13, 2026
D
Verified Purchase
Dennis
Belleville, US
★★★★★ 5
As good as the original
Color: gray
Perfect fit engine air filter and cabin air filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
C
Verified Purchase
chris gann
Boise, US
★★★★★ 4
Nice price for a good product
Color: gray
They’re a great fit at a good price I’ve used them before and I put them in before I have my oil change done because otherwise they try to charge you like lots of money for both of those when it takes five minutes max to get them both in your car
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Reviewed in the United States on April 1, 2026
C
Verified Purchase
Chaleff
Lowell, US
★★★★★ 5
25’ Impreza
Color: gray
Good fit on both filters. Easy install 25’ Impreza RS
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Reviewed in the United States on April 27, 2026

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