Product Description
HVAC Ceiling Register: 18-Gauge Stainless Steel Diffuser Built for Long-Term Airflow Performance. Made in the USA by AMERICAN TRUCKBOXES ATB®️
This ceiling air diffuser register is built for HVAC installers, contractors, and facility maintenance crews who need a round-connection register that won't warp or corrode. The 18-gauge stainless steel construction resists rust and holds its shape under repeated airflow cycling, outlasting lighter-gauge alternatives. It's manufactured by American Truckboxes LLC in Blanchard, North Dakota, with over 25 years of steel and aluminum fabrication experience. Eight connection sizes are stocked, and custom sizing is available for fleet or facility orders outside the standard range.
Key Features
- Corrosion resistance that lasts: 18-gauge stainless steel resists rust and pitting through repeated cleaning and moisture exposure
- Fits standard round ductwork: round pipe or collar connection mounts directly to existing HVAC collars without adapters
- Sized for the job: available in 6 inch through 20 inch connection sizes so installers can match diffuser to duct without cutting stock down
- Predictable ceiling cutouts: outer dimensions scale with connection size, from 8.5 by 8.5 inches up to 22.5 by 22.5 inches
- Holds up on the job site: 18-gauge material resists dents and warping during transport and install
- Straightforward install: installation instructions are included in the American Truckboxes installation catalog
- Custom sizing on request: fleet and facility managers needing a size outside the standard lineup can order a custom diffuser
Specifications
Material: 18 gauge stainless steel | Dimensions: 6" to 20" connection, 8.5" to 22.5" outer dimensions | Mounting: ceiling-mount, round pipe or collar connection | Warranty: 60-month limited (standard), 12-month limited (custom/modified)
Every diffuser register in this lineup is made in the USA with 25 years of manufacturing experience behind it. Reach out at truckbox.com or (888) 996-0376 for custom sizing, fleet quantities, or installation questions.
Frequently Asked Questions
Q: Where is this ceiling air diffuser register made?
A: This register is made in the USA at the American Truckboxes LLC facility in Blanchard, North Dakota. American Truckboxes has manufactured steel and aluminum products for over 25 years. Full details are available at truckbox.com.
Q: What warranty comes with this diffuser register?
A: Standard sizes carry a 60-month (5-year) limited warranty. Custom or modified boxes and auxiliary fuel tanks carry a 12-month limited warranty. The warranty applies to the original purchaser only and is non-transferable. Contact truckbox.com or (888) 996-0376 for full warranty details.
Q: Can I order a custom size?
A: Yes, custom sizes are available for connection diameters outside the standard 6 inch to 20 inch lineup. Custom and modified boxes carry a 12-month warranty. Reach out at truckbox.com or (888) 996-0376.
Q: Will this register fit my existing round ductwork?
A: Yes. Each size connects to a standard round pipe or collar connection matching its listed connection diameter, from 6 inches up to 20 inches. Measure your existing duct collar before ordering to confirm the correct connection size.
Q: Should I choose stainless steel or a painted finish for this register?
A: This diffuser register is built from 18-gauge stainless steel, which resists rust and holds up under repeated cleaning without a painted coating to chip or wear. It is a strong choice for kitchens, bathrooms, and other high-moisture ceiling installations.
Q: How do I install this ceiling diffuser register?
A: The register mounts to a round pipe or collar connection already in place in the ceiling. Full installation instructions are included in the American Truckboxes installation catalog. For guidance beyond the catalog, contact truckbox.com or (888) 996-0376.
Q: What sizes does this diffuser register come in?
A: It is stocked in eight connection sizes: 6, 8, 10, 12, 14, 16, 18, and 20 inches, with outer dimensions ranging from 8.5 by 8.5 inches to 22.5 by 22.5 inches. Select your size on this page before adding to cart.