CRYPTIC - 4" Linear Slot Diffuser - 2 Slot - Modern Air Vent Cover for

The Cryptic Air 4-inch 2-slot (double-slot) linear slot diffuser is a modern AC vent cover designed to replace standard registers with a clean architectural finish. Built for ceilings, walls, and floors in residential and commercial spaces, this decorative air vent delivers powerful, quiet airflow with a minimalist look.

Factory-direct pricing. Built in our US facility, sold directly. No distributor markup.
Custom sizing at no extra charge. Send your dimensions, we'll match them exactly.
Fast shipping. 2-5 days from US warehouses on stock sizes, 4-8 days on custom.
Silent air control. Internal airflow wings reduce noise while distributing air evenly.
Easy installation. Sized to replace standard vent covers without wall modifications.
Premium materials. High-grade aluminum, factory-painted with advanced coatings for long-term durability.

Also called a modern AC vent cover, decorative air vent, or 2-slot register grille. Built for builders, GCs, designers, and homeowners who want clean modern HVAC details without compromise. Need a custom size or a takeoff? Our HVAC engineering team can help.

📏Product Measurements

-Slot Width: 1"
-Neck Length:5 7/8"
-Neck Width: 3 3/4"
-Face Length: 7 3/8"
-Face Width: 4 7/8"
-CFM: 50

Important Notes

* The neck corresponds to the part that inserts into the vent hole, whereas the face is the portion responsible for providing the actual covering.

*The wall opening size matches the neck size, not the face.

*The opening can be slightly larger, up to approximately 1" more than the neck size.

*For all two-slot linear air diffusers, we recommend an opening of 4" wide.

Warning

An air vent's significance often goes underestimated. Compromising its quality can lead to severe consequences – damaged walls, potential mold growth, and costly repairs. Keep in mind that your air diffuser directly impacts the air you breathe daily, intrinsically linking your well-being to your living or working environment. Opting for high-quality air diffusers is the way to safeguard your air quality – it's a decision that truly counts.

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CRYPTIC - 4" Linear Slot Diffuser - 2 Slot - Modern Air Vent Cover for Ceiling, Wall or Floor