Customer helper

Choose the filter path before you shop

Start with the nominal size printed on the filter, then choose the depth/type and filtration level that fits your system.

1. SizeUse the printed nominal size.
2. Type/depthAprilAire cabinet, name-brand 4-inch, or name-brand 1-inch.
3. FiltrationMERV 11/12, 13/14, or 16 where compatible.
1. Choose nominal size
2. Choose filter type/depth
3. Choose filtration level
Optional: model / cabinet
Clear all

Why AprilAire cabinet media is first

In Better Air's field experience, AprilAire cabinet media is the top recommendation when the home has, or is upgrading to, the correct cabinet. The cabinet and media fit matter as much as the nominal size.

Why depth matters

4-inch filters usually have more media surface area than 1-inch filters, which can often mean better airflow and longer service life when correctly fitted. 1-inch filters are common and simple, but usually need more frequent replacement.

MERV caution

Higher MERV is not automatically better if the system cannot handle the airflow resistance. If the system already struggles with airflow, do not jump straight to the highest MERV without confirming compatibility.

General replacement guidance

1-inch filters: check/change about monthly.

4-inch filters: check/change about every 3 months.

AprilAire MERV 11/13: check around 6 months; many systems can go up to 12 months.

AprilAire MERV 16: about 6 months.

These are general starting points, not guarantees. Dust, pets, fan runtime, construction, smoke, and system airflow can change the right schedule.

Path A

AprilAire cabinet/media options

Use these when the cabinet or media model matches. Do not treat nominal size alone as a universal fit claim.

AprilAire 110

Size 16x20 MERV 11 Cabinet media

Cabinet models: 1110, 1110-APR

Standard AprilAire cabinet replacement media.

View details

AprilAire 113

Size 16x20 MERV 13 Cabinet media

Cabinet models: 1110, 1110-APR

Standard AprilAire cabinet replacement media.

View details

AprilAire 310

Size 20x20 MERV 11 Cabinet media

Cabinet models: 1310, 2310, 3310, 4300

Standard AprilAire cabinet replacement media.

View details

AprilAire 313

Size 20x20 MERV 13 Cabinet media

Cabinet models: 1310, 2310, 3310, 4300

Standard AprilAire cabinet replacement media.

View details

AprilAire 410

Size 16x25 MERV 11 Cabinet media

Cabinet models: 1410, 2410, 3410, 4400

Standard AprilAire cabinet replacement media.

View details

AprilAire 413

Size 16x25 MERV 13 Cabinet media

Cabinet models: 1410, 2410, 3410, 4400

Standard AprilAire cabinet replacement media.

View details

AprilAire 416

Size 16x25 MERV 16 Cabinet media

Cabinet models: 1410, 2410, 3410, 4400

Standard AprilAire cabinet replacement media.

View details

AprilAire 210

Size 20x25 MERV 11 Cabinet media

Cabinet models: 1210, 1210-APR, 2210, 3210, 4200

Standard AprilAire cabinet replacement media.

View details

AprilAire 213

Size 20x25 MERV 13 Cabinet media

Cabinet models: 1210, 1210-APR, 2210, 3210, 4200

Standard AprilAire cabinet replacement media.

View details

AprilAire 216

Size 20x25 MERV 16 Cabinet media

Cabinet models: 1210, 1210-APR, 2216, 3210, 4200

Standard AprilAire cabinet replacement media.

View details

AprilAire 510

Size 31x28 MERV 11 Cabinet media

Cabinet models: 1510

Standard AprilAire cabinet replacement media.

View details

AprilAire 513

Size 31x28 MERV 13 Cabinet media

Cabinet models: 1510

Standard AprilAire cabinet replacement media.

View details

AprilAire 516

Size 31x28 MERV 16 Cabinet media

Cabinet models: 1510, 2516

Standard AprilAire cabinet replacement media.

View details

AprilAire 1110-APR

Size 16x20 Cabinet / housing

Replacement media: 110, 113

Air cleaner cabinet/equipment; not a replacement media row.

View details

AprilAire 1310

Size 20x20 Cabinet / housing

Replacement media: 310, 313

Air cleaner cabinet/equipment; not a replacement media row.

View details

AprilAire 1410

Size 16x25 Cabinet / housing

Replacement media: 410, 413, 416

Air cleaner cabinet/equipment; not a replacement media row.

View details

AprilAire 1210-APR

Size 20x25 Cabinet / housing

Replacement media: 210, 213, 216

Air cleaner cabinet/equipment; not a replacement media row.

View details

AprilAire 1510

Size 31x28 Cabinet / housing

Replacement media: 510, 513, 516

Air cleaner cabinet/equipment; not a replacement media row.

View details

4-inch path

Name-brand 4-inch options

Usually more media surface area than a 1-inch filter, which can often mean better airflow and longer service life when correctly fitted.

Name-brand 4-inch

Customer-facing brands for this path: 3M Filtrete, Honeywell, Lennox.

Verified product rows are not populated yet for this path, so these links are broad searches only.

Fit checklist: match nominal size, actual depth, MERV rating, and any MPR/FPR shown by the retailer. Confirm the system can handle the selected filtration level.

Replacement: General guidance: check/change about every 3 months.

1-inch path

Name-brand 1-inch options

Common and simple, but usually needs more frequent replacement than deeper media filters.

Name-brand 1-inch

Customer-facing brands for this path: 3M Filtrete, Honeywell, Lennox.

Verified product rows are not populated yet for this path, so these links are broad searches only.

Fit checklist: match nominal size, actual depth, MERV rating, and any MPR/FPR shown by the retailer. Confirm the system can handle the selected filtration level.

Replacement: General guidance: check/change about monthly.