Air distribution products that finish the job right
Grille Tech® provides quality grilles, registers, and diffusers that help deliver clean airflow and a professional finished look. Whether you're completing a new install, replacing damaged vents, or upgrading a space during a remodel, correct sizing and placement matter for comfort and performance.
Supply and return air components are more than cosmetic. Proper free area, blade design, and fitment can impact air throw, noise, and system balance—especially in tight duct runs or higher static pressure applications.
If you’re matching a replacement, measure the duct opening (not the outer frame) and confirm the mount type so the new grille fits and seals correctly.
What you’ll find here
- Supply grilles and registers
- Return air grilles
- Ceiling diffusers for balanced throw
- Finishes and sizes for new installs or replacements
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Grille Tech — FAQs
How do I measure a grille or register?
Measure the duct opening (width × height), not the outer frame. That opening size is typically how grilles and registers are listed.
What’s the difference between a register and a grille?
A register usually includes an adjustable damper to control airflow. A grille is typically fixed-blade and used for supply or return openings.
Do diffusers help with airflow comfort?
Yes—ceiling diffusers are designed to spread air evenly and reduce drafts, improving comfort and airflow distribution.