4-Inch Key Valve Extension

Marsoni

M251S

$15.00

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

4-Inch Key Valve ExtensionThe 4 Inch Key Valve Extension offers a smart add on to complete your fire pit kit installation when you need a longer key valve.

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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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I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!

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Reviewed in the United States on December 29, 2025

Verified Purchase

Kev

Phoenix, US

★★★★★ 5

Makes For Quiet Rides

Model: 10 SqFt(0.95 SqM)

Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.

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Reviewed in the United States on March 15, 2026