Napoleon periscope-snorkel-for-wall-penetration-below-grade-5-8-gd401
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The Napoleon GD401 Periscope (Snorkel) allows a 5" x 8" direct vent to exit through a wall below ground level. It raises the termination point up to the required height above grade, so the fireplace can be installed in basements and other low locations.
Type: Periscope (Snorkel) Terminal
Model: GD401
Vent Size: 5" x 8"
Application: Below-Grade Wall Penetration
Compatible With: Napoleon Direct Vent Gas Appliances