VanEssential Magnetic Insulated Blackout Roof Vent Cover for 16.5" x 16.5" MaxxAir/Fantastic Fan — Charcoal Gray, Foldable, Reflec

VanEssential's Magnetic Insulated Blackout Roof Vent Cover blocks light and improves temperature control for 16.5" x 16.5" MaxxAir or Fantastic Fan flanges.

This charcoal-gray vent cover is built to fit standard 16.5" x 16.5" fan flanges from MaxxAir and Fantastic Fan, combining blackout performance with automotive-grade insulation for better interior comfort. The updated design adds three convenient folds so the cover can be stowed back on the flange during the day, while soft-edged binding reduces light leaks where traditional covers often fail.

How does this cover keep a van cooler in summer and warmer in winter?

The VanEssential cover uses automotive-grade insulation to form a thermal barrier over the fan opening, reducing heat transfer through the roof vent. By reflecting radiant heat and slowing conductive loss, it helps keep interiors more stable so your heater or AC doesn't work as hard.

• Reflective charcoal fabric reduces solar gain on hot days
• Insulating core limits heat loss during cold weather
• Sealed soft edges minimize drafts and light entry
• Magnetic attachment ensures a snug, gap-free fit

Will this fit my MaxxAir or Fantastic Fan with a 16.5" flange?

Yes — the cover is sized specifically for a 16.5" x 16.5" flange common to many MaxxAir and Fantastic Fan models. The flexible construction and magnetic perimeter accommodate slight variations while keeping the cover flush against the roof opening.

• Precisely cut for 16.5" x 16.5" flanges
• Magnetic edge conforms to metal flange surfaces
• Soft-bound edges improve seal on irregular surfaces
• Foldable design tucks back and secures for daytime use

How does the fold-back feature work during daytime use?

The cover includes three engineered folds that allow it to be folded and fastened onto the fan flange, keeping the cover out of the way without removing it. This makes it quick to switch between blackout and open configurations while maintaining the cover's location and magnetic alignment.

• Three-fold pattern folds neatly against the flange
• Fastens securely so it won’t flap while driving or at camp
• No tools required to stow the cover for daytime ventilation
• Keeps magnets and binding aligned for quick redeployment

How easy is installation and maintenance?

Installation is straightforward: position the magnetic edge over your fan flange and let the magnets seat. The cover is low maintenance — wipe-clean exterior fabric and occasional spot clean of the insulated interior keep it performing season after season.

• Quick magnetic attachment — no hardware or adhesives needed
• Lightweight and easy to handle solo
• Wipe-clean outer surface for simple upkeep
• Durable construction resists compression and repeated folding

Who is this for? This vent cover is aimed at vanlifers, campers, and anyone who uses a MaxxAir or Fantastic Fan with a 16.5" x 16.5" flange and wants better light control and thermal performance. It suits overnight campers seeking darker sleeping conditions, travelers wanting easier climate management without running HVAC constantly, and DIY van builders who prefer a simple, tool-free accessory that integrates with existing roof fans.