Superior Rigid Vertical Firestop for 6DVL Direct Vent Lock System

Superior Rigid Vertical Firestop for 6DVL Direct Vent Lock System

Marsoni

M251S

$90.00

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

Superior Rigid Vertical Firestop for 6DVL Direct Vent Lock SystemThe Superior Rigid Vertical Firestop for 6DVL Direct Vent Lock System provides a premium accessory for use with your gas fireplace. Featuring heavy duty stainless steel construction, this unit has been built to last. A 6 inch inner diameter and a 9 inch outer diameter create an ideal size for many applications. This firestop offers a necessary component to complete the installation of your direct vent fireplace.

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Your Superior Rigid Vertical Firestop for 6DVL Direct Vent Lock System orders ship within 1-2 business days.

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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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I love K & N air filters and always install them in my cars. This eliminated my cars Turbo lag in my 2019 Honda Civic Ex which has a 1.5L Turbo. Acceleration has improved and makes the car louder (I also have dual exhaust) I love how you don't have to change or clean it for 50,000 miles!! I know it's expensive but will last forever! Only issue was it was very difficult to install and a pain but this is more Hondas fault as I could not fully remove the plastic case where this filter goes under the hood even with tools.

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Reviewed in the United States on November 23, 2019

Verified Purchase

R. A

New York, US

★★★★★ 5

Works great

Perfect fit

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Reviewed in the United States on August 7, 2025

Verified Purchase

Evan

Bozeman, US

★★★★★ 5

More power and better mileage

Put this in my 2017 CRV and have noticed much more pickup and better mileage overall. Usually I average 22mpg with mixed driving and this has me hovering around 25mpg and I get to have extra power on top of that. Install was straightforward and a breeze. Whole project is done in ten mins and your car is instantly more fun and getting improved MPGS

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Reviewed in the United States on November 30, 2024

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jcf

Port Orchard, US

★★★★★ 5

Great fit and price

Size: 5424WS, Style: Workshop

For a 2018 Jeep Grand Cherokee. Perfect for. Great price. I’m sure I’ll get 20-30K miles out of this filter.

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Reviewed in the United States on May 30, 2026

Verified Purchase