Napoleon Periscope Kit for Wall Penetration Below Grade and Flexible Direct Vent, 4x7-inch

Napoleon Periscope Kit for Wall Penetration Below Grade and Flexible Direct Vent, 4x7-inch

Marsoni

M251S

$339.50

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

Napoleon Periscope Kit for Wall Penetration Below Grade and Flexible Direct Vent, 4x7-inchThe Napoleon Periscope Kit for Wall Penetration Below Grade and Flexible Direct Vent, 4x7 inch provides a high quality venting component for Napoleon's direct vent appliances. This periscope kit is designed for 4" x 7" direct vent piping in order to properly terminate your vent components with below grade wall penetration.

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Your Napoleon Periscope Kit for Wall Penetration Below Grade and Flexible Direct Vent, 4x7-inch orders ship within 1-2 business days.

Delivery Options:

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 have dry mouth which makes me prone to bad breath. I’ve experimented with chewing these before bed (after brushing) or in the morning (also after brushing). I tested my breath using a cloth mask and also did “blank” tests on days when I did not use the product. Chewing before bed greatly reduced morning breath but left me with some sour mouth, which makes me worry a bit about tooth decay. I’ve switched to taking in the morning and have been happy with the results.

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Reviewed in the United States on October 6, 2024

Verified Purchase

Graciela Saltos

Massapequa, US

★★★★★ 5

My experience

Loved this product. It worked from day 1. Tastes good. Highly recommended

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 18, 2026

Verified Purchase

Sarah R.

Belleville, US

★★★★★ 3

Lips & mouth sore?

Mouth and lips became sensitive and sore after using this product 2x per day for 3 days. Maybe I’m allergic to one of the ingredients? Don’t know. It’s day 3 of soreness and waiting for it to subside.

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Reviewed in the United States on December 1, 2025

Verified Purchase

MoK

Cuba, US

★★★★★ 1

Doesn’t work

I’ve tried to for three weeks and I’ve tested and it does t work. I can taste this mint in my mouth and it still smells funky. I’ve had customers and employees tell me my breath smells. I don’t drink coffeee and I brush my teeth for 10mins straight every morning and night and I also use mouth wash and I use three tabs throughout the day and it does nothing for me.

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Reviewed in the United States on August 31, 2023

Verified Purchase

Diana

Waukegan, US

★★★★★ 5

Recommended by my dental hygienist

These probiotics help maintain a healthy balance of bacteria in your mouth, which already improved my gum health and reduced bad breath. This product was recommended by my dental hygienist.

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Reviewed in the United States on July 19, 2025