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For a supply duct, choose a register with adjustable louvers or a damper that fits the duct opening and sends conditioned air in the desired direction. A return grille is different: it is an intake cover and usually should not be throttled or substituted with a supply register. Measure the inside duct opening—not the old cover’s outside face—before buying. The models below are supply registers with actual airflow-control features; they are not return grilles.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Decor Grates ST410 Scroll Floor Register | $15-$20 | Amazon · eBay |
| 2 | Decor Grates AJH410-BLK Oriental Floor Register | $13-$18 | Amazon · eBay |
| 3 | Imperial RG2004 Brown Steel Floor Register | $8-$15 | Amazon · eBay |
| 4 | Accord AMFRSNB410 Wicker Floor Register | $15-$25 | Amazon |
| 5 | AirGrilles 12 × 10 White Steel Supply Register | $20-$35 | Amazon |
| 6 | 210 Series 16 × 8 One-Way Wall/Ceiling Register | $25-$50 | Amazon |
| 7 | TruAire 350 4 × 10 Steel Floor Register | $10-$20 | Amazon |
| 8 | Decor Grates SPH410-NKL Floor Register | $15-$25 | Amazon · eBay |
| 9 | Decor Grates 4 × 10 Oil-Rubbed Bronze Steel Floor Register | $15-$22 | Amazon · eBay |
The picks, in detail
Decor Grates ST410 Scroll Floor Register
A 4 × 10 inch black steel floor supply register with a plastic damper box for adjustable airflow.
- fits 4 × 10 in duct opening
- steel face
- rust-resistant plastic damper box
- Damper lets the user reduce or open supply flow
- Popular standard floor size
- One-way floor throw is not a replacement for a wall diffuser
Decor Grates AJH410-BLK Oriental Floor Register
A 4 × 10 inch textured-black plated-steel floor register with a sliding plastic damper box.
- fits 4 × 10 in opening
- one-way floor deflection
- adjustable rust-proof damper box
- Drop-in installation for a common opening
- Decorative steel face
- Pattern is a style choice, not extra HVAC capacity
Imperial RG2004 Brown Steel Floor Register
A basic 4 × 10 inch brown steel floor register with an adjustable damper for a standard supply opening.
- 4 × 10 in duct opening
- steel construction
- adjustable damper
- Straightforward replacement part
- Damper control for a supply outlet
- Brown finish limits décor matching
Accord AMFRSNB410 Wicker Floor Register
A satin-nickel 4 × 10 inch floor register with a wicker-style face and rustproof plastic damper box.
- 4 × 10 in opening size
- satin-nickel steel face
- adjustable plastic damper
- Decorative finish with airflow adjustment
- Plastic damper avoids corroded metal damper boxes
- Confirm that 4 × 10 refers to your duct opening
AirGrilles 12 × 10 White Steel Supply Register
A larger white steel supply register for a 12 × 10 inch wall or ceiling duct opening, with an adjustable damper.
- 12 × 10 in duct opening
- steel construction
- adjustable supply damper
- Fits a larger wall/ceiling supply size
- Provides a positive air-control mechanism
- Too large for a 12 × 10 outside-face measurement if the duct is smaller
210 Series 16 × 8 One-Way Wall/Ceiling Register
A 16 × 8 inch single-deflection supply register for directing air from a wall or ceiling, available with SmoothGlide or opposed-blade damper choices.
- 16 × 8 in neck size
- one-way adjustable deflection
- optional damper mechanisms
- Direction-focused solution for wall or ceiling supply
- Multiple damper options
- Requires correct neck size and mounting method
TruAire 350 4 × 10 Steel Floor Register
A steel floor supply register in the common 4 × 10 size, with a listed 67% free area for the grille face.
- 4 × 10 in floor size
- steel construction
- 67% listed free area
- Purpose-built floor supply register
- Known free-area specification helps compare restrictive decorative covers
- Verify damper configuration on the exact retailer listing
Decor Grates SPH410-NKL Floor Register
A plated-steel 4 × 10 floor register using a plastic damper box and an airflow-control tab.
- 4 × 10 in floor opening
- plated steel grille
- plastic damper box with control tab
- Airflow-control tab is easy to access
- Steel face suits a floor installation
- Still a supply register, not a return-air filter grille
Decor Grates 4 × 10 Oil-Rubbed Bronze Steel Floor Register
A 4 × 10 steel floor register in an oil-rubbed bronze finish with a damper box for supply-air adjustment.
- fits 4 × 10 opening
- steel construction
- adjustable damper box
- Alternative finish for dark floors
- Common replacement size
- Finish does not change throw pattern or duct capacity
Buying tips
- A register is for supply air; a return grille is for intake air. Do not close or substantially restrict a return grille to solve a comfort problem.
- Measure the duct opening after removing the old register. The outside face is intentionally larger and will give the wrong purchase size.
- Use a damper for modest room balancing, not to compensate for an undersized duct or equipment fault. If one room has persistent poor airflow, have the HVAC system assessed.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.