This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

Improve your home's air quality with this standard-grade furnace filter (12-Pack). Designed with a filtering medium that is continuous filament spun glass, it keeps furnaces and air conditioners clean and running efficiently. It is effective against dust, debris and lint. The frame is made with one continuous piece of chipboard to guard against corner separation. Optimize this filter by changing it monthly during high-use periods; one case will last you a year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the cardboard frame

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

Improve your home's air quality with this standard-grade furnace filter (12-Pack). Designed with a filtering medium that is continuous filament spun glass, it keeps furnaces and air conditioners clean and running efficiently. It is effective against dust, debris and lint. The frame is made with one continuous piece of chipboard to guard against corner separation. Optimize this filter by changing it monthly during high-use periods; one case will last you a year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30-day
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame
• 1-piece chipboard frame resists moisture

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

Improve your home's air quality with this standard-grade furnace filter (12-Pack). Designed with a filtering medium that is continuous filament spun glass, it keeps furnaces and air conditioners clean and running efficiently. It is effective against dust, debris and lint. The frame is made with one continuous piece of chipboard to guard against corner separation. Optimize this filter by changing it monthly during high-use periods; one case will last you a year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame
• 1-piece chipboard frame resists moisture

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30-day
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50-years. The filtering medium is continuous filament spun glass. The frame is made with 1 continuous piece of chipboard to guard against corner separation. for peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30-days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame
• 1-piece chipboard frame resists moisture

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30-day
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame

Improve your home's air quality with this standard-grade furnace filter (12-Pack). Designed with a filtering medium that is continuous filament spun glass, it keeps furnaces and air conditioners clean and running efficiently. It is effective against dust, debris and lint. The frame is made with one continuous piece of chipboard to guard against corner separation. Optimize this filter by changing it monthly during high-use periods; one case will last you a year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50-years. The filtering medium is continuous filament spun glass. The frame is made with 1 continuous piece of chipboard to guard against corner separation. for peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30-days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame
• 1-piece chipboard frame resists moisture

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame

Improve your home's air quality with this standard-grade furnace filter (12-Pack). Designed with a filtering medium that is continuous filament spun glass, it keeps furnaces and air conditioners clean and running efficiently. It is effective against dust, debris and lint. The frame is made with one continuous piece of chipboard to guard against corner separation. Optimize this filter by changing it monthly during high-use periods; one case will last you a year.

• Lasts up to 30 days
• Change filters monthly for peak energy efficiency
• Low airflow resistance
• UL class II
• Self-retaining media adheres directly to the frame
• 1-piece chipboard frame resists moisture

Economy Fiberglass EZ Flow II disposable filters are designed for protection of furnace and central air units in residential and light commercial applications. The frame is made from heavy chipboard in a one-piece design that eliminates corner separation. The filtering media is continuous filament spun glass. A resinous bonding agent provides rigidity and resistance to media compression. The EZ Flow II is made to function without a retainer, by adhering the frame directly to the media which has a light skin to make it self retaining. Sealing is accomplished with a resilient hot-melt adhesive running the full perimeter of the frame on both upstream and downstream sides. UL marking appears on the filter frame. These filters have been tested by Underwriters Laboratories Inc. and are classified as UL 900 Class 2 for flammability. MERV 4.

• One-piece frame
• Priced Each, Sold in case quantities only