No Toil Castle furnace filter 16x20x1, black
Castle Filters use 3 layers of open-celled foam with a tacky center to capture dust while allowing air flow. Rated MERV 8 and designed for long-lasting use. One customer note: easy to install in the return system
Highlights
- three-layer foam with tacky center
- MERV 8 with high airflow
- one-year lifespan
Pros
- three-layer foam construction
- tacky center layer for dust capture
- high airflow with MERV 8
- long-lasting, up to one year
- easy installation in return system
Cons
- mixed reviews on longevity beyond a few months
- some report restricted airflow over time
- dust retention varies by use
Best For
Features
- Patented Castle Filters use three layers of 14-inch open-celled foam with a tacky center layer to trap dust
- MERV 8 rating provides filtration while maintaining high airflow
- 400% more surface area for dust collection with sticky-treated internal foam to capture particles
- Lasts one year, holding up to 20 times more dust than a pleated filter
- Designed to reduce replacement frequency and lower waste compared to monthly changes
