Every filter we make, one shelf

A 16x20x1 furnace filter with an actual measured size of 15-1/2 x 19-1/2 x 3/4 in - nominal 16x20x1 frames always run undersized, so measure your slot before ordering. The media is pleated synthetic polyester, rated MERV 11 to catch fine dust, pet dander, mold spores and pollen. MERV 11 sits a step up for allergy and pet households, without choking the blower. At $12.49 per filter (14% under the $14.49 list), this is a 90-day cartridge; three to four a year keeps the coil clean and airflow up. A loaded filter makes the blower work harder, so the 90-day cadence is what keeps static pressure in range. It slides straight into the return-air slot - mark the install date on the frame and the next change is easy to schedule. One filter per order, so grab a spare and the swap never waits on shipping.

Ships in 2-5 business days from Indiana, with free shipping on orders over $49.

A 16x20x1 furnace filter with an actual measured size of 15-1/2 x 19-1/2 x 3/4 in - nominal 16x20x1 frames always run undersized, so measure your slot before ordering. The media is pleated synthetic polyester, rated MERV 8 to catch standard household dust, pollen and lint. MERV 8 sits the household standard - the right balance of capture and airflow for most homes. At $9.99 per filter (17% under the $11.99 list), this is a 90-day cartridge; three to four a year keeps the coil clean and airflow up. A loaded filter makes the blower work harder, so the 90-day cadence is what keeps static pressure in range. It slides straight into the return-air slot - mark the install date on the frame and the next change is easy to schedule. One filter per order, so grab a spare and the swap never waits on shipping.

Ships in 2-5 business days from Indiana, with free shipping on orders over $49.

A 20x20x1 furnace filter with an actual measured size of 19-1/2 x 19-1/2 x 3/4 in - nominal 20x20x1 frames always run undersized, so measure your slot before ordering. The media is pleated synthetic polyester, rated MERV 8 to catch standard household dust, pollen and lint. MERV 8 sits the household standard - the right balance of capture and airflow for most homes. At $10.99 per filter (15% under the $12.99 list), this is a 90-day cartridge; three to four a year keeps the coil clean and airflow up. A loaded filter makes the blower work harder, so the 90-day cadence is what keeps static pressure in range. It slides straight into the return-air slot - mark the install date on the frame and the next change is easy to schedule. One filter per order, so grab a spare and the swap never waits on shipping.

Ships in 2-5 business days from Indiana, with free shipping on orders over $49.

A 20x25x1 furnace filter with an actual measured size of 19-1/2 x 24-1/2 x 3/4 in - nominal 20x25x1 frames always run undersized, so measure your slot before ordering. The media is pleated synthetic polyester, rated MERV 13 to catch microscopic particles, including smoke and bacteria carriers. MERV 13 sits at the top of the residential range, for smoke, wildfire ash and fine-particulate concerns. At $17.99 per filter (10% under the $19.99 list), this is a 60-day cartridge (sooner in homes with pets); three to four a year keeps the coil clean and airflow up. A loaded filter makes the blower work harder, so the 60-day cadence is what keeps static pressure in range. It slides straight into the return-air slot - mark the install date on the frame and the next change is easy to schedule. One filter per order, so grab a spare and the swap never waits on shipping.

Ships in 2-5 business days from Indiana, with free shipping on orders over $49.

A 16x25x1 furnace filter with an actual measured size of 15-1/2 x 24-1/2 x 3/4 in - nominal 16x25x1 frames always run undersized, so measure your slot before ordering. The media is pleated synthetic polyester, rated MERV 13 to catch microscopic particles, including smoke and bacteria carriers. MERV 13 sits at the top of the residential range, for smoke, wildfire ash and fine-particulate concerns. At $16.99 per filter (11% under the $18.99 list), this is a 60-day cartridge (sooner in homes with pets); three to four a year keeps the coil clean and airflow up. A loaded filter makes the blower work harder, so the 60-day cadence is what keeps static pressure in range. It slides straight into the return-air slot - mark the install date on the frame and the next change is easy to schedule. One filter per order, so grab a spare and the swap never waits on shipping.

Ships in 2-5 business days from Indiana, with free shipping on orders over $49.

A 16x25x1 furnace filter with an actual measured size of 15-1/2 x 24-1/2 x 3/4 in - nominal 16x25x1 frames always run undersized, so measure your slot before ordering. The media is pleated synthetic polyester, rated MERV 11 to catch fine dust, pet dander, mold spores and pollen. MERV 11 sits a step up for allergy and pet households, without choking the blower. At $13.49 per filter (13% under the $15.49 list), this is a 90-day cartridge; three to four a year keeps the coil clean and airflow up. A loaded filter makes the blower work harder, so the 90-day cadence is what keeps static pressure in range. It slides straight into the return-air slot - mark the install date on the frame and the next change is easy to schedule. One filter per order, so grab a spare and the swap never waits on shipping.

Ships in 2-5 business days from Indiana, with free shipping on orders over $49.