There is no need for precise measurements you can round the measurement to the nearest 1 2 size.
Ac ceiling vent sizes.
Do not measure the old register or vent.
Register vent boosters pull more air from registers and increase comfort in rooms that aren t served by your hvac system.
In line booster fans boost heated and cooled air for increased comfort.
Pull the vent forward and out of the opening.
Measure the size of the air duct opening.
Remove the screws that hold the vent in place.
Air will move straight through registers and grilles.
You can attach the vent to almost any duct opening whether it s a ceiling or a sidewall.
If your duct opening is rounded to the nearest 1 2 size and you still cannot find your duct opening size listed don t worry.
The register shown above is a common aluminum adjustable curved blade one way 10 6 ceiling register.
Furthermore what we ve loved the most is that it s 12 x 6 compact size makes it very convenient to fit.
If your duct opening measures 9 3 4 x 9 3 4 a 10x10 cover will work.