18x20x2
18x20x2 furnace filter. Premium quality made by CAMFIL.
| CAMFIL AP-3 | CAMFIL 30/30 | |
| MERV | 8 | 8 |
| LIFESPAN | 4 months | 6 months |
| COST PER FILTER | $12.25 | $19.58 |
| PRICE 12-PACK | $147 | $235 |
| OVERVIEW | economical | best overall value |
The higher the MERV rating on a filter, the fewer dust particles and other contaminants can pass through it.
