Return Air Grilles

MSI Return Air Grille Units

In areas of your boat where it’s hard to get fresh air, you can still breathe easily with an MSI return air transfer grille. Marine Systems Incorporated designs some of the world’s best marine air return grilles, letting stale air be pulled back into the HVAC system for heating, cooling and filtering. You’ll greatly improve the air quality of enclosed compartments like cabins, galleys and bathrooms. MSI is an OEM transfer grille supplier for many boat manufacturers because they are known for efficient, stylish performance.

Enjoy Fresh Air on Your Boat

Marine Parts Source has a large selection of MSI air transfer grille replacements which are also great for RVs and campers. The blades and vanes on every MSI transfer air duct are designed for great airflow, so your main concern is choosing the size and materials.

• Enjoy the sleek contemporary style and rust resistance of an aluminum or stainless steel return air grille.
• Save money with the durable, lightweight construction of plastic air transfer grilles — some of which are paintable in your favorite colors.
• Add a classy vintage look to your vessel with return air grilles in wood frames like teak, ash, cherry and mahogany.

These grilles can be mounted on the ceiling, wall or floor — wherever is most convenient. Your return air grille can have fixed or adjustable vanes to change the air pattern. Browse the MSI catalog here or call us toll-free at 866-388-0390 or use our contact form for assistance. In-stock return grilles ship the same business day from the nearest available warehouse on orders placed by noon CT.