Amarine-made Stainless Steel Stamped Louvered Vent - Rectangular - 07720S - 5" X 9"

You would think the seller could give a little more information, or at least not go out of their way to make it appear that it allows a descent amount of air flow. After measuring these 5" x 9" vents, it was a big surprise that the air throughput area was only 3.7 square inches. That is a very small hole area of 1.92 inches by 1.92 inches. So if you need more vent area than that small of a hole, these louvered vents will not work for you, and will end up causing damage by putting an extremely restrictive flow on your blower motor.

These have been used outside and they show no signs of wear. They were considerably cheaper than the competitors. Highly recommend!

Great product

Appears to be a quality item but only time will tell when exposed to the elements. Wish it came with an insect screen.

Used to vent subwoofer cabinet in boat. Looks sharp and vents compartment

Used for a shipping container to add ventilation. Works great

Good looking product

Well made, quality polished finish, does the job.