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| Item No: | Nominal Size | Size (Duct Opening) | Model | Slots | Neck Size | Actual Size | Material | Outer Dimensions | Color | Airflow Direction | Bulk Pricing | Order | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2-10 | 11-20 | 21-49 | 50+ | 100+ | ||||||||||||
| 421108-9 | 14"W x 8"H | Aluminum | 15-3/4"W X 9-3/4"H | White | Adjustable | $20.09 | $19.09 | $18.49 | $17.89 | $17.08 | |||||||
| 421108-16 | 20"W x 4"H | Aluminum | 21-3/4"W X 5-3/4"H | White | Adjustable | $40.29 | $38.28 | $37.07 | $35.86 | $34.25 | |||||||
| 421108-12 | 16"W x 6"H | Aluminum | 17-3/4"W X 7-3/4"H | White | Adjustable | $36.09 | $34.29 | $33.21 | $32.13 | $30.68 | |||||||
| 421108-7 | 14"W x 14"H | Aluminum | 15-3/4"W X 15-3/4"H | White | Adjustable | $50.49 | $47.97 | $46.46 | $44.94 | $42.92 | |||||||
| 421108-21 | 6"W x 6"H | Aluminum | 7-3/4"W X 7-3/4"H | White | Adjustable | $13.59 | $12.92 | $12.51 | $12.10 | $11.56 | |||||||
| 421108-4 | 12"W x 4"H | Aluminum | 13-3/4"W X 5-3/4"H | White | Adjustable | $24.79 | $23.56 | $22.81 | $22.07 | $21.08 | |||||||
| 421108-18 | 20"W x 8"H | Aluminum | 21-3/4"W X 9-3/4"H | White | Adjustable | $46.69 | $44.36 | $42.96 | $41.56 | $39.69 | |||||||
| 421108-17 | 20"W x 6"H | Aluminum | 21-3/4"W X 7-3/4"H | White | Adjustable | $38.99 | $37.05 | $35.88 | $34.71 | $33.15 | |||||||
| 421108-13 | 16"W x 8"H | Aluminum | 17-3/4"W X 9-3/4"H | White | Adjustable | $42.49 | $40.37 | $39.10 | $37.82 | $36.12 | |||||||
| 421108-11 | 16"W x 4"H | Aluminum | 17-3/4"W X 5-3/4"H | White | Adjustable | $33.99 | $32.30 | $31.28 | $30.26 | $28.90 | |||||||
| 421108-8 | 14"W x 6"H | Aluminum | 15-3/4"W X 7-3/4"H | White | Adjustable | $16.09 | $15.29 | $14.81 | $14.33 | $13.68 | |||||||
| 421108-20 | 6"W x 4"H | Aluminum | 7-3/4"W X 5-3/4"H | White | Adjustable | $16.99 | $16.15 | $15.64 | $15.13 | $14.45 | |||||||
| 421108-19 | 24"W x 8"H | Aluminum | 25-3/4"W X 9-3/4"H | White | Adjustable | $49.49 | $47.02 | $45.54 | $44.05 | $42.07 | |||||||
| 421108-14 | 18"W x 18"H | Aluminum | 19-3/4"W X 19-3/4"H | White | Adjustable | $96.09 | $91.29 | $88.41 | $85.53 | $81.68 | |||||||
| 421108-15 | 18"W x 6"H | Aluminum | 19-3/4"W X 7-3/4"H | White | Adjustable | $39.59 | $37.62 | $36.43 | $35.24 | $33.66 | |||||||
| 421108-10 | 16"W x 10"H | Aluminum | 17-3/4"W X 11-3/4"H | White | Adjustable | $46.69 | $44.36 | $42.96 | $41.56 | $39.69 | |||||||
| 421108-3 | 12"W x 10"H | Aluminum | 13-3/4"W X 11-3/4"H | White | Adjustable | $63.09 | $59.94 | $58.05 | $56.16 | $53.63 | |||||||
| 421108-6 | 12"W x 8"H | Aluminum | 13-3/4"W X 9-3/4"H | White | Adjustable | $28.09 | $26.69 | $25.85 | $25.01 | $23.88 | |||||||
| 421108-5 | 12"W x 6"H | Aluminum | 13-3/4"W X 7-3/4"H | White | Adjustable | $19.09 | $18.14 | $17.57 | $17.00 | $16.23 | |||||||
| 421108-2 | 10"W x 8"H | Aluminum | 11-3/4"W X 9-3/4"H | White | Adjustable | $30.79 | $29.26 | $28.33 | $27.41 | $26.18 | |||||||
| 421108-1 | 10"W x 6"H | Aluminum | 11-3/4"W X 7-3/4"H | White | Adjustable | $26.29 | $24.98 | $24.19 | $23.40 | $22.35 | |||||||
Aluminum adjustable supply registers let you aim conditioned air at the room opening with movable deflection blades, while a back damper sets the volume behind them. Within the aluminum supply registers range, AirGrilles stocks the adjustable style in white rust-free aluminum, built for both ceiling and sidewall installations, with widths from 6 inches to 24 inches and heights from 4 inches to 18 inches. For rooms where the throw needs to reach farther across the space, AirGrilles also carries an aluminum adjustable curved blade supply register in the same family. Bulk pricing runs across 6 quantity tiers with savings up to 30%, orders of 500+ units qualify for custom production, and in-stock items ship the same day on orders placed by 11AM ET.
Aluminum adjustable supply registers separate two jobs at the opening: the movable blades aim the air, and the back damper throttles the volume, in a material that will not rust. Within the Aluminum Supply Registers range, the adjustable style is the pick for rooms where the air needs directional control and the register itself needs to shrug off humidity. Bathrooms, kitchens, laundry rooms, and coastal properties put moisture against the face daily, and aluminum holds its finish there longer than painted steel does. The blades stay firm in their set position once adjusted, so the register runs quiet as air moves across the face.
Aluminum adjustable supply registers install on both ceiling and sidewall openings, unlike styles built for a single mounting location. The face wears a powder finish baked onto rust-free aluminum, and the range currently ships in white, matched to the most common ceiling and wall colors in residential and light commercial rooms. Widths run from 6 inches to 24 inches and heights from 4 inches to 18 inches, covering the standard duct openings this style targets. Once the mounting location and finish are confirmed, sizing comes down to the duct opening itself.
Aluminum adjustable supply registers are ordered by the duct opening, measured width by height, never by the outer cover. The outer face runs about 1-3/4 inches larger than the opening, so a 6"W x 6"H opening uses a 7-3/4"W x 7-3/4"H face that overlaps the hole. For a longer, directional throw in wider rooms, Aluminum Adjustable Curved Blade Supply Registers shape the same movable-blade control into a farther-reaching stream. Bulk pricing spans 6 quantity tiers: 1, 2-10, 11-20, 21-49, 50+, and 100+, with the 6"W x 6"H register falling from $22.59 at a single unit to $15.82 at the 50+ tier, a savings of 30%. Orders of 500+ units qualify for custom production depending on size, finish, quantity, and lead time, and in-stock items ship the same day on orders placed by 11AM ET.
These answers cover the blade, damper, material, and ordering questions that come up most on aluminum adjustable supply registers.
Two things adjust independently: the deflection blades and the back damper. The blades on the face move to aim airflow in the direction the room needs, while the damper behind them controls how much air comes through the opening. Together they set both the direction and the volume at the register itself.
Aluminum does not rust, which matters in bathrooms, kitchens, laundry rooms, and coastal properties where moisture sits against the face daily. Steel is the more economical pick for dry rooms and standard wall openings. Both carry movable blades and a back damper, so the choice comes down to the room's conditions, not the mechanism.
Measure the duct opening width and height, then order by that listed size rather than the visible cover. The outer face runs about 1-3/4 inches larger because it overlaps the opening. Widths run 6 to 24 inches and heights 4 to 18 inches in stock.
An adjustable register aims a single stream, which suits an opening near a wall, a window, or a seating area. For a ceiling opening near the center of a room that needs air spread outward in several directions at once, Square Ceiling Diffusers cover that layout instead. Order either style by the duct opening.
The range currently ships in white, powder finished for long-term resistance to chipping and corrosion. White matches the most common ceiling and wall colors in residential and light commercial rooms. Check the product listing for the latest color options before ordering.
Yes, for openings that call for a long, narrow face instead of a standard rectangular register, Aluminum Linear Slot Diffusers run in slot counts sized to the opening's width. That style suits architectural ceilings and walls built around a continuous slot line. Adjustable registers remain the standard choice for typical duct openings.
Yes, bulk pricing applies automatically across 6 quantity tiers, with savings of 30% at the 50+ tier. A 6"W x 6"H register drops from $22.59 per unit to $15.82 at that tier. Orders of 500+ units qualify for custom production, and in-stock items ship the same day on orders placed by 11AM ET.
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Order by the duct opening, not the faceplate. Remove the vent and measure the hole behind it, then order that size. Getting it right the first time means no returns, no reorders, and no waiting on the job.