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Napoleon Horizontal Firestop for Rigid Direct Vent, 4x7-Inch - Pack of 6

Marsoni M251S
Sale price$144.50
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Get it in 3 business days with 1 day shipping. Friday, May 29
Napoleon Horizontal Firestop for Rigid Direct Vent, 4x7-Inch - Pack of 6The Napoleon Horizontal Firestop for Rigid Direct Vent, 4x7 Inch Pack of 6 provides a high quality venting component for Napoleon's direct vent appliances. This firestop is designed for 4" x 7" direct vent piping in order to properly terminate your vent components to complete the air intake exhaust.
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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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4.1 ★★★★★
Based on 1298 reviews
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Carlos G
Phoenix, US
★★★★★ 5
Recommended
Excellent quality, a synthetic mixture that I will no longer use another brand for my car. I removed a little noise that I had
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
B
Verified Purchase
beachboy
Port Orchard, US
★★★★★ 5
Buy it !
I run this in our 2010 PT Cruiser Classic, you can hear the difference, pricey but worth it, will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
B
Verified Purchase
Briwurm de Mesa
Natrona Heights, US
★★★★★ 5
Nice item
Great product thank you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
J
Verified Purchase
Janeth B
Charlottesville, US
★★★★★ 5
Great
I recently used this motor oil for my car, and I’m very satisfied with the results. The engine runs smoother and quieter, and I noticed improved performance almost immediately. It provides excellent protection, especially during longer drives, and helps maintain steady engine temperature.
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Reviewed in the United States on September 8, 2025
G
Verified Purchase
Gustavo Gonzalez
Whiting, US
★★★★★ 5
As expected it
Great brand, engine smoothness, value for money
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Reviewed in the United States on January 24, 2026

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