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Ashwin Patel photo
Israel, Jerusalem
1 Level
775 Review
43 Karma

Review on Imperial Premium Intake Built PAT 4W by Ashwin Patel

Revainrating 5 out of 5

If you are looking for 4 inch HRV louver, this is your best choice.

I have used them as a fresh air supply for a 4" duct heat recovery fan. It is unobtrusive in the home and easy to install, I wish they were made with a built in tilt BUT after much searching it is, like asking for a unicorn.

Pros
  • As everything before
Cons
  • Safety