20x25x4 Furnace Filters
20x25x4 Pleated Air Filters, Furnace Filters Replacement
Nominal size : 20" x 25" x 4"
Actual size :19 1/2" x 24 1/2" x 3 3/4"
This 4 inch filter is a high quality, economical aftermarket replacement.
Made of 100% synthetic media. It will not absorb water, preventing the growth of mould, fungi and bacteria. Made with fire retardant materials. A rigid constructed housing with efficiently spaced pleats, enabling excellent surface capacity for better air filtration of airborne particles.
Pleated Air Filters
Spacing of the pleats allows for air travel across the entire surface of the 4 inch filter and increased filtering capacity. Larger dust particles are captured at the top and bottom of the pleat. Smaller particles will be caught in the sides of the pleat surface.
The filter is constructed from a rigid, fire retardant material. It performs extremely well even in difficult operating conditions. The filtering media is glued to the frame itself, ensuring that the air will not be able to escape, or bypass the filter.
Maximize your Energy Efficiency
Controlling Indoor Home Air Pollution
If health is on your mind, you are certainly concerned about indoor home air pollution. The air inside your home is what you breathe everyday, and it can impact your susceptibility to asthma, allergies and other respiratory problems. For this reason, controlling the quality of air inside your home is always important.One of the best ways to control indoor home air pollution and generally protect the quality of air inside your house is to change the filter in your HVAC system regularly. These filters are usually disposable, and they should be changed at least once every three months.
Related Air Furnace Filter Sizes
- 16 x 25 x 4 furnace filter
- 20 x 20 x 4 furnace filter
- 20 x 25 x 4 furnace filter
- 24 x 24 x 4 furnace filter