Seachoice 20991 Aluminum Anti-Siphon Valve 1/4" NPT Thread, 3/8' Id Hose Barb
Seachoice 20991 Aluminum Anti-Siphon Valve 1/4" NPT Thread, 3/8' Id Hose Barb
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Seachoice 20991 Aluminum Anti-Siphon Valve 1/4" NPT Thread, 3/8' Id Hose Barb

|5 ratings

Key item features

  • Durable Construction: Constructed from aluminum, this anti-siphon valve offers robust performance for marine applications.
  • Fuel Security: The one-way valve design effectively prevents fuel theft and minimizes the risk of fuel spillage.
  • Safety Compliance: Meets U.S. Coast Guard industry standards for anti-siphon protection on gasoline-powered boats, enhancing safety.
  • Integrated Design: Combines anti-siphon protection with a convenient hose barb for straightforward installation.
  • Precise Dimensions: Features a 3/8" ID hose barb and a 1/4" NPT thread for specific connection requirements.
  • Fire Prevention: Designed to prevent fuel spillage, thereby reducing potential fire hazards on board.
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5 ratings3 reviews
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Showing 1-3 of 3 reviews

Jul 31, 2025
Reviewer name: andre
Sold and shipped byLeaders RPM
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

antisiphon valve

quick delivery, and fit and installation with ease

Helpful?32X32S0TP47C32738924
Nov 1, 2016
Reviewer name: Mike
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Nice part

Used on the moeller fuel pick up, worked fine as replacement for 1996 Lowe deck boat

Helpful?32X32S0TP47C32738924
Nov 8, 2015
Reviewer name: Mike
5 out of 5 stars
5 out of 5 stars review

Great item.

This is exactly what I was shopping for. Easy on-line ordering and Fast shipping.

Helpful?32X32S0TP47C32738924
Current price is $8.77
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  • Free shipping
  • Free Holiday returns until Jan 31

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Sold and shipped by Leaders RPM
4.6325823223570195 out of 5 stars
4.6 stars out of 5, based on 577 seller reviews(4.6)
Extended holiday returns
Free Holiday returns until Jan 31
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$11.66
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Shipping, arrives by Fri, Oct 9 to Columbus, 43215
Sold and shipped by Boating Store
Extended holiday returns
Free Holiday returns until Jan 31