We make it easy to find 18x25x1 furnace filter. Keep more cash in your wallet when you buy online. Your new filters are in stock ready to ship. Comparison and options:
|CAMFIL AP-3||CAMFIL 30/30||CAMFIL AP-11|
|LIFESPAN||2 months||3 months||3 months|
|COST PER FILTER||$13.50||$17.75||$20.83|
|OVERVIEW||economical|| best overall
| remove allergens
at low cost
The higher the MERV rating on a filter, the fewer dust particles and other contaminants can pass through it.